Isaak Rosenberg: A Family With No Survivors

The youngest child of Rebecca Blumenfeld and Mendel Rosenberg was their son Isaak. As we saw, Isaak was born in Rosenthal, Germany, on June 15, 1892, and on December 22, 1922, he married Bella Gans, daughter of Jacob Gans and Esther Ehrenreich, in Niederaula, Germany.

Isaak and Bella had one child, a daughter Rita Rosenberg, born on April 29, 1924 in Frankfurt.

Unfortunately, all of them—Isaak, Bella, and Rita—were murdered by the Nazis. According to Yad Vashem, Isaak was deported from Frankfurt on August 10, 1942, and sent to the concentration camp in Majdanek, Poland, where he was murdered. His wife Bella’s nephew Israel Gans filed this Page of Testimony at Yad Vashem in his memory. The Hebrew written where it says “circumstances of death” merely says “perished in the Holocaust.” (Thank you to Hanna Gafni of Tracing the Tribe on Facebook for translating this line on this Page and the two below.)

The information available regarding the fates of Bella and Rita is far less specific. The Gedenbuch (Memorial Book) only reports that Bella was deported to Poland and killed there; perhaps she was deported on the same date as Isaak and to the same camp, but that isn’t stated. Nor does the Page of Testimony filed at Yad Vashem by Bella’s nephew Israel Gans provide any further details. The line for “Circumstances of Death” translates as “deported to Poland. Her fate is not known. Perished in the Holocaust.”

The information about Rita is even more limited. The Gedenbuch doesn’t even have information about where she was deported to or killed nor does her cousin Israel Gans’ Page of Testimony for her. The Hebrew written where it says “circumstances of death” says “perished in the Holocaust.”


This may be the first time that I have learned of family members who were killed in the Holocaust for whom there are no recorded details of their fates. Did Bella and Rita accompany Isaak to Majdanek? Or was the family separated? The lack of information somehow makes their deaths sting even more. The fact that the Nazis didn’t even document their murders makes it more likely that those deaths would have been somehow swept under the rug. So it is my task here to make sure that their lives and their murders are not forgotten.


That brings me to the end of the story of Rebecca Blumenfeld Rosenberg, the seventh child of Isaak Blumenfeld I and Gelle Strauss. Although Rebecca lost one son, Willi, as a young adult, and her son Isaak and his family were all murdered in the Holocaust, she was survived by seven grandchildren and has descendants still living today in Israel and the United States.

Next I turn to Rebecca’s younger sister, Friederike Blumenfeld, the eighth child of Isaak Blumenfeld I and Gelle Strauss and the last of their children to live to adulthood.

Genealogy Fun: How My Friend and I Discovered We Have Mutual Cousins

One of the first people I ever met who did genealogy research is my friend Amanda Katz Jermyn. I met Amanda through mutual friends over thirty years ago, and we have been members of the same small havurah group for many years now. When Amanda long ago described her genealogy research and the connections and stories she had found, I was amazed. She helped to inspire me to start my own journey.

Amanda and I both have paternal ancestry from Germany, and over the years we’ve wondered whether we would ever find an overlap in our German Jewish ancestry. Well, I finally found one, although it is very attenuated and only by marriage. Nevertheless it was fun to find this connection.1 Here’s the story of my third cousin, twice removed, Moritz Rosenberg, and his wife Berta Blum, Amanda’s third cousin, once removed.

As we saw in my earlier post, Moritz, the third child of Rebecca Blumenfeld and Mendel Rosenberg, was born on September 15, 1887, in Rosenthal, Germany, and married Berta Blum on August 10, 1919, in Frankenau, Germany. Berta was born on September 5, 1896, in Frankenau to Elias Blum and Amalie Katz.

Marriage of Moritz Rosenberg and Berta Blum, Hessisches Hauptstaatsarchiv; Wiesbaden, Deutschland; Signatur: 3254, Year Range: 1919, Ancestry.com. Hesse, Germany, Marriages, 1849-1930

Moritz and Berta had two children, Jacob (later Theodore), born on January 17, 1921,2 and Rebecca (later Ruth), born on January 4, 1925, both in Rosenthal, Germany.3

Moritz and his family were among the very fortunate ones who all were able to escape safely from Nazi Germany. Moritz, Berta, and their 13-year-old daughter Rebecca arrived in New York on September 15, 1938. Moritz listed his occupation as a butcher. Berta’s cousin Herman Blum was listed as the person they knew in the US.4

It took me longer to find out when Jacob arrived in the US because I was searching for him as Jacob, as that is how he was listed on Moritz’s naturalization petition. But the 1940 census has him identified as Theodore (and Rebecca as Ruth),5 and that gave me the necessary clue to find Jacob a/k/a Theodore’s naturalization petition. He arrived in the US as a 16-year-old on May 15, 1937. And on his 1942 petition he used his newly adopted name, Theodore.

Moritz Rosenberg, Declaration of Intention, (Roll 548) Declarations of Intention For Citizenship, 1842-1959 (No 426401-427400), Ancestry.com. New York, U.S., State and Federal Naturalization Records, 1794-1943

Theodore Jack Rosenberg a/k/a Jakob Teo Rosenberg, Declaration of Intention, The National Archives at Philadelphia; Philadelphia, PA; NAI Title: Declarations of Intention For Citizenship, 1/19/1842 – 10/29/1959; NAI Number: 4713410; Record Group Title: Records of District Courts of the United States, 1685-2009; Record Group Number: 21, Description: (Roll 561) Declarations of Intention For Citizenship, 1842-1959 (No 438701-439600), Ancestry.com. New York, U.S., State and Federal Naturalization Records, 1794-1943

The date of his arrival helped me locate Theodore’s ship manifest, where he identified his father as the person he was leaving behind, and his uncle, Herman Blum, as the person he was going to in the US. He is identified as Teo Rosenberg. (See the last line on the image below.)

Teo Rosenberg, ship manifest, The National Archives and Records Administration; Washington, D.C.; Passenger and Crew Lists of Vessels Arriving at and Departing from Ogdensburg, New York, 5/27/1948 – 11/28/1972; Microfilm Serial or NAID: T715, 1897-1957, Ship or Roll Number: Manhattan, Ancestry.com. New York, U.S., Arriving Passenger and Crew Lists (including Castle Garden and Ellis Island), 1820-1957

In 1940, Moritz, Berta, and both of their children were living in New York City. Moritz and Berta were both working as salespeople for a wholesale dress business, and Theodore was a handyman for a venetian blinds company. They also had four lodgers living with them.

Moritz Rosenberg and family, 1940 US Census, Year: 1940; Census Place: New York, New York, New York; Roll: m-t0627-02670; Page: 1A; Enumeration District: 31-1885, Ancestry.com. 1940 United States Federal Census

But while I was searching for information about Theodore/Jacob, I found Moritz and Berta and their children on an Ancestry family tree called the 2020 Jermyn Tree, owned by someone with a memorable name, James Bond. I might have thought that that name was a pseudonym, but fortunately I knew that my friend Amanda had a distant cousin with that name. So seeing the title with her surname and the name of the owner, I assumed there had to be some connection between my relative Moritz Rosenberg and his family and my friend Amanda.

Although Amanda’s name wasn’t revealed on the tree since she is still living, I knew her parents’ names, and they were on the tree. The connection appeared to be through Moritz Rosenberg’s wife Berta Blum, whose mother was Amalie Katz, but I couldn’t quite sort out how Robert Katz, Amanda’s father, was related to Amalie Katz.

I contacted Amanda, and she confirmed the connection and said that Berta Blum was in fact her relative—her third cousin, once removed, through Berta’s mother Amalie Katz and Amanda’s father Robert Katz. Even better, Amanda had been in touch with Moritz and Berta’s daughter Ruth (born Rebecca) and was able to provide me with more information about Ruth and her brother Theodore and their children.

For example, Amanda shared that Ruth had told her that her brother Theodore had enlisted in the US Army in the intelligence division and that the army had him change his surname from Rosenberg to Rogers since he was being sent to Germany. This helped me locate Theodore’s draft registration, which I had had trouble locating when searching for Theodore Rosenberg.

Theodore registered for the draft on February 15, 1942, and was still working for the venetian blinds company at that time. As you can see, he crossed out Rosenberg on his draft registration and inserted Rogers as his surname.

Theodore Rosenberg/Rogers, World War II draft registration, National Archives at St. Louis; St. Louis, Missouri; Wwii Draft Registration Cards For New York City, 10/16/1940 – 03/31/1947; Record Group: Records of the Selective Service System, 147, Ancestry.com. U.S., World War II Draft Cards Young Men, 1940-1947

Ruth Rosenberg married Henry Hammer (born Hammerschlag) after the war; their New York City marriage license is dated June 12, 1945.6 Henry was born on March 29, 1919, in Giessen, Germany.7 In 1950, Ruth and Henry were living in New York City, and Henry was working as a salesman for wholesale dry goods company. Ruth and Henry would have two children.8

Meanwhile, in 1950, Moritz, Berta, and Theodore were living together (along with Berta’s mother Amalie Blum) in New York City. Moritz and Berta now were in the wholesale liquor business together, and Theodore was continuing to sell venetian blinds.

National Archives at Washington, DC; Washington, D.C.; Seventeenth Census of the United States, 1950; Year: 1950; Census Place: New York, New York, New York; Roll: 4547; Page: 3; Enumeration District: 31-1731, Ancestry.com. 1950 United States Federal Census

Theodore didn’t marry until 1960 when he was 39 years old.9 His wife was Sylvia Kapp (originally Kappenmacher), born on February 20, 1938, in Port Elizabeth, South Africa, to Willi Kappenmacher and Erna Wolf. Sylvia and her parents had immigrated to the US on June 8, 1946,10 and were living in New York City in 1950. Theodore and Sylvia had two children born in the 1960s.

Sadly, those children lost their father when they were very young as Theodore died on November 13, 1971, at the age of fifty.11 He was survived not only by his wife and children, but also by both of his parents and his sister Ruth and her family.

Fortunately, Theodore’s father and especially his mother and sister were graced with very long lives. Moritz Rosenberg died on September 22, 1976, five years after his son. He had turned 89 years old just a week before.12

Berta Blum Rosenberg achieved a remarkable distinction—living to 112 years and becoming the oldest living Jewish person in the world at that time, as reported in her obituary in the January 30, 2009, Hackensack (NJ) Record:

Berta Blum Rosenberg obit

The Record Hackensack, New Jersey • Fri, Jan 30, 2009 Page L6

Berta died on January 28, 2009, in New York.13 She was survived by her daughter Ruth and her grandchildren and great-grandchildren.

Her daughter Ruth also lived a long life. She died on March 8, 2021, at the age in 96; her husband Henry Hammer had predeceased her by many years, having passed away on May 17, 1986, at the age of 67.14 Ruth was survived by her children and grandchildren as well as the children and grandchildren of her brother Theodore.

Those children and grandchildren of Ruth and Theodore create a link between my friend Amanda and myself. They are our mutual cousins—the descendants of my cousin, Moritz Rosenberg, and Amanda’s cousin, Berta Blum.

Isn’t genealogy fun?


  1. Amanda also shares some DNA with my husband, but given the different ancestral homes of each of them and the very small amount of DNA shared, it is likely just endogamy. 
  2. Theodore Jack Rosenberg a/k/a Jakob Teo Rosenberg, Declaration of Intention, The National Archives at Philadelphia; Philadelphia, PA; NAI Title: Declarations of Intention For Citizenship, 1/19/1842 – 10/29/1959; NAI Number: 4713410; Record Group Title: Records of District Courts of the United States, 1685-2009; Record Group Number: 21, Description: (Roll 561) Declarations of Intention For Citizenship, 1842-1959 (No 438701-439600), Ancestry.com. New York, U.S., State and Federal Naturalization Records, 1794-1943 
  3. Moritz Rosenberg, Declaration of Intention, (Roll 548) Declarations of Intention For Citizenship, 1842-1959 (No 426401-427400), Ancestry.com. New York, U.S., State and Federal Naturalization Records, 1794-1943 
  4. Ibid. 
  5. Moritz Rosenberg and family, 1940 US Census, Year: 1940; Census Place: New York, New York, New York; Roll: m-t0627-02670; Page: 1A; Enumeration District: 31-1885, Ancestry.com. 1940 United States Federal Census. See image below. 
  6. Ruth R Rosenberg, Gender Female, Marriage License Date 12 Jun 1945
    Marriage License Place Manhattan, New York City, New York, USA, Spouse Henry M Hammer. License Number 14437, New York City Municipal Archives; New York, New York; Borough: Manhattan; Volume Number: 21, Ancestry.com. New York, New York, U.S., Marriage License Indexes, 1907-2018 
  7. Henry Hammerschlag World War II draft registration, National Archives at St. Louis; St. Louis, Missouri; Wwii Draft Registration Cards For New York City, 10/16/1940 – 03/31/1947; Record Group: Records of the Selective Service System, 147, Ancestry.com. U.S., World War II Draft Cards Young Men, 1940-1947 
  8. Henry Hammer and family, 1950 US census, National Archives at Washington, DC; Washington, D.C.; Seventeenth Census of the United States, 1950; Year: 1950; Census Place: New York, New York, New York; Roll: 4377; Page: 19; Enumeration District: 31-2183, Ancestry.com. 1950 United States Federal Census 
  9. Theodore Rogers, Gender Male, Marriage License Date 1960, Marriage License Place Manhattan, New York City, New York, USA, Spouse Sylvia Kapp, License Number 11021, New York City Municipal Archives; New York, New York; Borough: Manhattan, Ancestry.com. New York, New York, U.S., Marriage License Indexes, 1907-2018 
  10. Kappenmacher, ship manifest, The National Archives and Records Administration; Washington, D.C.; Passenger and Crew Lists of Vessels Arriving at and Departing from Ogdensburg, New York, 5/27/1948 – 11/28/1972; Microfilm Serial or NAID: T715, 1897-1957, Ship or Roll Number: Marine Tiger, Ancestry.com. New York, U.S., Arriving Passenger and Crew Lists (including Castle Garden and Ellis Island), 1820-1957.  Erna Kapp, SSACI, Ancestry.com. U.S., Social Security Applications and Claims Index, 1936-2007. 
  11. Theodore Rogers, Birth Date 17 Jan 1921, Death Date 13 Nov 1971, SSN 116105571, Enlistment Branch ARMY, Enlistment Date 3 Mar 1943, Discharge Date 23 Dec 1945, Ancestry.com. U.S., Department of Veterans Affairs BIRLS Death File, 1850-2010 
  12. Moritz Rosenberg, SSDI, Social Security Administration; Washington D.C., USA; Social Security Death Index, Master File, Ancestry.com. U.S., Social Security Death Index, 1935-2014. Headstone at Find a Grave, database and images (https://www.findagrave.com/memorial/36414768/moritz-rosenberg: accessed 07 August 2023), memorial page for Moritz Rosenberg (15 Sep 1887–Sep 1976), Find a Grave Memorial ID 36414768, citing Cedar Park Cemetery, Paramus, Bergen County, New Jersey, USA; Maintained by dalya d (contributor 46972551). 
  13. Berta Rosenberg, SSDI, Social Security Administration; Washington D.C., USA; Social Security Death Index, Master File, Ancestry.com. U.S., Social Security Death Index, 1935-2014 
  14. Henry Hammer, Age 67, Birth Date 29 Mar 1919, Death Date 17 May 1986
    Death Place North Bergen, Hudson, New Jersey, USA, New Jersey State Archives; Trenton, New Jersey; New Jersey, Death Indexes, 1904-2000, Ancestry.com. New Jersey, U.S., Death Index, 1848-1878, 1901-2017 

Blanka Rosenberg and Hugo Blumenfeld, Or How I Learned I’d Made An Error

Searching for information about Blanka Rosenberg, the first child born to Rebecca Blumenfeld and Mendel Rosenberg, revealed a mistake and a gap in my earlier research, and I am indebted to my cousin Richard Bloomfield for helping me to correct that mistake and find accurate information about Blanka and her family.

So let me take you down my crooked path. When I started searching for information about Blanka, I easily found her birth and death records on Ancestry.  I knew it was the right death record because the birthdate and birth place matched Blanka, and I could see on that death record that Blanka had married someone named Blumenfeld.

Blanka Rosenberg birth record, LAGIS Hessen Archives, Standesamt Rosenthal Geburtsnebenregister 1882 (HStAMR Best. 922 Nr. 9638)AutorHessisches Staatsarchiv MarburgErscheinungsortRosenthalErscheinungsjahr1882, p. 35

Blanka Rosenberg Blumenfeld death record, Hessisches Hauptstaatsarchiv; Wiesbaden, Deutschland; Personenstandsregister Sterberegister; Bestand: 7389; Laufende Nummer: 923
Year Range: 1932, Ancestry.com. Hesse, Germany, Deaths, 1851-1958

But I could not find a marriage record for Blanka. I noticed that several Ancestry trees had her married to Hugo Blumenfeld—which I couldn’t decipher myself from the death record— but even with his full name, I couldn’t find a marriage record.

I had a Hugo Blumenfeld on my tree; he was the son of Abraham Blumenfeld III and Friedericke Rothschild and the grandson of Isaak Blumenfeld I and his first wife, Frommet Kugelmann. But when I’d researched that Hugo, I had concluded that he never married or had children. I now realized I might have been wrong if those Ancestry trees for Blanka Rosenberg were right.

But since I don’t trust the trees on Ancestry without corroboration with actual records or at least reliable secondary sources, I was reluctant to add Hugo Blumenfeld as Blanka Rosenberg’s husband. I turned to my cousin Richard Bloomfield for help, and he first pointed out that Blanka’s death record revealed that her husband’s name was in fact Hugo. This was another time that my struggles with reading the German script hampered the progress of my research.

So I was now persuaded that Blanka had married a man named Hugo Blumenfeld, but was it the same Hugo whom I had concluded had never married? And where was their marriage record? I had assumed that Blanka would have married in Rosenthal where her family lived since almost all the German Jewish marriages I’d researched took place where the bride’s family lived, but my search through the Hessen archives for Rosenthal did not turn up a marriage record.

Richard, however, located the marriage in the records for the town of Frankenau, which is fifteen miles from Rosenthal. They were married there on July 23, 1907.  And that record confirmed that Blanka was the daughter of Rebecca Blumenfeld and Mendel Rosenberg and that Hugo was the son of Abraham Blumenfeld III and Friedericke Rothschild.

Marriage of Hugo Blumenfeld and Blanka Rosenberg, Arcinsys Hessen Archives, HHStAW Fonds 365 No 175, p. 11

Blanka and Hugo were, of course, therefore related. They were both grandchildren of Isaak Blumenfeld I, but only half-first cousins since Hugo’s father Abraham III was Isaak’s son from his first marriage and Blanka’s mother Rebecca was Isaak’s daughter from his second marriage.

With Richard’s help, I was able to locate three children born to Blanka and Hugo, all born in Frankenau. Julius was born on March 7, 1908. Erwin Jacob was born on May 29, 1911, and Martin was born January 6, 1913 (all found on the same page in the Frankenau birth records).

Birth record of Julius Blumenfeld, Arcinsys Archives of Hessen, HHStAW Fonds 365 No 174, p. 25

Birth record of Erwin Jakob Blumenfeld, Arcinsys Archives of Hessen, HHStAW Fonds 365 No 174

Birth record of Martin Blumenfeld, Arcinsys Archives of Hessen, HHStAW Fonds 365 No 174

Blanka died before any of her sons were married. She was only fifty years old when she died on July 24, 1932, in Witzenhausen, Germany, which is about sixty miles northeast of Frankenau. From the death record (seen above), it appears that she and Hugo were living in Witzenhausen at the time of her death. According to a document Richard located, Hugo was teaching in a Jewish school there.1

Blanka’s middle son Erwin Jakob Rosenberg married Martha Schoendelen on September 21, 1938, in Hannover, Germany. Martha was born on June 17, 1915, in Krefeld, Germany. Erwin and Martha escaped from Nazi Germany and immigrated to the US on April 1, 1940.2

They settled in New York City where, at the time of the 1940 census, Erwin was looking for work as an auto mechanic.3 When he registered for the draft on October 16, 1940, he was working for A.E. Littman.

Irwin Jakob Blumenfeld, World War II draft registration, National Archives at St. Louis; St. Louis, Missouri; Wwii Draft Registration Cards For New York City, 10/16/1940 – 03/31/1947; Record Group: Records of the Selective Service System, 147. Ancestry.com. U.S., World War II Draft Cards Young Men, 1940-1947

Erwin entered the US Army on June 25, 1943, and was stationed at Fort Meade in Maryland, where he petitioned for and was granted naturalization on December 15, 1943.

Erwin Jakob Blumenfeld Naturalization Petition, The National Archives at Philadelphia; Philadelphia, Pa; Petitions For Naturalization, 1903-1972; NAI Number: 654310; Record Group Title: Records of District Courts of the United States, 1685-2009; Record Group Number: 21
Description: Petitions 24751-25075, Ancestry.com. Maryland, U.S., Federal Naturalization Records, 1795-1931

In 1950, Erwin was working as a buyer for a wholesale clothing business, and he and Martha and their daughter were living in New York City.4 Erwin was 63 when he died on August 27, 1974.5 He was survived by his wife Martha, who died on November 6, 2006,6 and their daughter.

Blanka’s two other sons immigrated to Palestine/Israel in the 1930s. Julius arrived on August 23, 1934, and married Ettel Helfgott on March 26, 1940, in Haifa. On his naturalization application, Julius reported that his occupation was a well borer.

Julius Blumenfeld Palestine immigration file from the Israel State Archives, at https://www.archives.gov.il/en/

I don’t have an exact date for Martin’s arrival, but he married Carna Weinberg in Petah Tikvah on December 19, 1939, so must have arrived sometime before then. I have no further information about either Julius or Martin or their families at this point.

UPDATE! I now have some additional information about Julius. See my post here.

Martin Blumenfeld Palestine immigration file from the Israel State Archives, at https://www.archives.gov.il/en/

Although all three of his sons escaped from Nazi Germany in time, Hugo Blumenfeld himself was not as fortunate. He had remarried after Blanka died; his second wife was Frieda Stern, who was born on May 31, 1896, in Zimmersrode, Germany.7 I wrote back on February 8, 1922, that Hugo “was deported from Frankfurt to Theriesenstadt on August 14, 1942, and then to Auschwitz on October 16, 1944, where he was killed.” I did not know then that he was accompanied by his second wife Frieda and that she was also killed at Auschwitz.8 I also did not know that he was survived by three sons, all of whom had escaped from Nazi Germany.

I am so grateful to Richard Bloomfield for helping me not only to find information about our cousin Blanka Rosenberg, but also for helping me find information to correct and complete the story of our cousin Hugo Blumenfeld.

 


  1. Führer durch die Jüdische Gemeindeverwaltung und Wohlfahrtspflege in Deutschland 1932-1933, p. 180. (Guide to the Jewish Community Administration and Welfare in Germany 1932-1933). 
  2. Erwin Jakob Rosenberg, Declaration of Intention, The National Archives at Philadelphia; Philadelphia, PA; NAI Title: Declarations of Intention For Citizenship, 1/19/1842 – 10/29/1959; NAI Number: 4713410; Record Group Title: Records of District Courts of the United States, 1685-2009; Record Group Number: 21, Description: (Roll 648) Declarations of Intention For Citizenship, 1842-1959 (No 516701-517600), Ancestry.com. New York, U.S., State and Federal Naturalization Records, 1794-1943 
  3. Erwin and Martha Blumenfeld, 1940 US census, Year: 1940; Census Place: New York, New York, New York; Roll: m-t0627-02641; Page: 9A; Enumeration District: 31-763, Ancestry.com. 1940 United States Federal Census 
  4. Erwin Blumenfeld, 1950 US census, United States of America, Bureau of the Census; Washington, D.C.; Seventeenth Census of the United States, 1950; Record Group: Records of the Bureau of the Census, 1790-2007; Record Group Number: 29; Residence Date: 1950; Home in 1950: New York, New York, New York; Roll: 4546; Sheet Number: 15; Enumeration District: 31-1703, Ancestry.com. 1950 United States Federal Census 
  5. Erwin Blumenfeld, Gender Male, Birth Date 29 May 1911, Death Date Aug 1974
    Claim Date 16 Sep 1974, SSN 093169515, Ancestry.com. U.S., Social Security Applications and Claims Index, 1936-2007 
  6. Martha Blumenfeld, Social Security Number 064-18-2853, Birth Date 27 Jun 1915
    Issue year Before 1951, Issue State New York, Last Residence 10034, New York, New York, New York, Death Date 6 Nov 2006, Social Security Administration; Washington D.C., USA; Social Security Death Index, Master File, Ancestry.com. U.S., Social Security Death Index, 1935-2014 
  7. Birth record of Frieda Stern, Hessisches Hauptstaatsarchiv; Wiesbaden, Deutschland; Bestand: 920; Laufende Nummer: 9534, Year Range: 1896, Ancestry.com. Hesse, Germany, Births, 1851-1901 
  8. Entry at Yad Vashem for Frieda Stern Blumenfeld, found at  https://yvng.yadvashem.org/nameDetails.html?language=en&itemId=11476884&ind=1 

Rebecca Blumenfeld Rosenberg and Her Family, Part I

It’s been a really, really long time since I continued the story of the children of my four times great-grandparents Abraham Blumenfeld and Geitel Katz (other than with the updates about those I’d already discussed). I left off with the story of the ten children of the second child (Isaak Blumenfeld I) of the oldest child (Moses Blumenfeld I) of the six children of my four-times great-grandparents.

Here’s a chart showing where I am in reporting on the descendants of Abraham and Geitel. As you can see, I have a long, long way to go.

I am now up to Isaak Blumenfeld’s eighth child, Rebecca Blumenfeld, who was born on August 23, 1856, in Momberg Germany.

LAGIS Hessen Archives, Geburtsregister der Juden von Momberg (Neustadt) 1850-1874 (HHStAW Abt. 365 Nr. 608), p. 4

On August 9, 1881, she married Mendel Rosenberg, son of Jacob Rosenberg and Betti Kaufmann. Mendel was born in Rosenthal, Germany, on May 19, 1854, and was the uncle of Emanuel Rosenberg, who later married Katinka Blumenfeld, Rebecca’s niece (her brother Gerson II’s daughter).

Rebecca Blumenfeld and Mendel Rosenberg marriage record, Hessisches Hauptstaatsarchiv; Wiesbaden, Deutschland; Bestand: 915; Laufende Nummer: 6491, Year Range: 1881, Ancestry.com. Hesse, Germany, Marriages, 1849-1930

Rebecca and Mendel had five children.

Blanka was born in Rosenthal on July 9, 1882.

Blanka Rosenberg birth record, LAGIS Hessen Archives, Standesamt Rosenthal Geburtsnebenregister 1882 (HStAMR Best. 922 Nr. 9638)AutorHessisches Staatsarchiv MarburgErscheinungsortRosenthalErscheinungsjahr1882, p. 35

Joseph was born in Rosenthal on February 4, 1886.

Joseph Rosenberg birth record, LAGIS Hessen Archives, Standesamt Rosenthal Geburtsnebenregister 1886 (HStAMR Best. 922 Nr. 9642)AutorHessisches Staatsarchiv MarburgErscheinungsortRosenthalErscheinungsjahr1886, p. 7

Moritz was born in Rosenthal on September 15, 1887.

Moritz Rosenberg birth record, LAGIS Hessen Archives, Standesamt Rosenthal Geburtsnebenregister 1887 (HStAMR Best. 922 Nr. 9643), p. 40

Willi was born in Rosenthal on April 24, 1889.

Willi Rosenberg birth record, LAGIS Hessen Archives, Standesamt Rosenthal Geburtsnebenregister 1889 (HStAMR Best. 922 Nr. 9645)AutorHessisches Staatsarchiv MarburgErscheinungsortRosenthalErscheinungsjahr1889, p. 17

And finally, Isaak was born in Rosenthal on June 15, 1892.

Isaak Rosenberg birth record, LAGIS Hessen Archives, Standesamt Rosenthal Geburtsnebenregister 1892 (HStAMR Best. 922 Nr. 9648)AutorHessisches Staatsarchiv MarburgErscheinungsortRosenthalErscheinungsjahr1892, p. 32

For now I will just identify the spouses of those children and their marriage dates, and then I will return to their stories in subsequent posts.

Blanka married Hugo Blumenfeld on July 23, 1907, in Frankenau, Germany.

Marriage of Hugo Blumenfeld and Blanka Rosenberg, Arcinsys Hessen Archives, HHStAW Fonds 365 No 175, p. 11

Joseph married Bella Oppenheim on February 21, 1913, in Bad Hersfeld, Germany. They had one child, a son Kurt, born on April 20, 1914, in Sobernheim, Germany,1 a town in the Rhine Palatinate region of Germany about 160-170 miles from Bad Hersfeld and Momberg where Bella and Joseph were born, respectively.

Marriage of Joseph Rosenberg and Bella Oppenheim, Hessisches Hauptstaatsarchiv; Wiesbaden, Deutschland; Bestand: 907, Year Range: 1913, Ancestry.com. Hesse, Germany, Marriages, 1849-1930

Unfortunately, Rebecca and Mendel’s family then had two losses over the next two and a half years. Willi Rosenberg was only 25 when he died on December 31, 1914. I wondered whether he was killed fighting for Germany in World War I, but I’ve found no record indicating that that was the case.

Willi Rosenberg death record, Hessisches Hauptstaatsarchiv; Wiesbaden, Deutschland; Personenstandsregister Sterberegister; Signatur: 9757
Source Information
Ancestry.com. Hesse, Germany, Deaths, 1851-1958

A year and a half later Rebecca Blumenfeld Rosenberg died in Rosenthal on June 6, 1915. She was 58 years old.

Rebecca Blumenfeld death record, Hessisches Hauptstaatsarchiv; Wiesbaden, Deutschland; Personenstandsregister Sterberegister; Signatur: 9757, Year Range: 1915, Ancestry.com. Hesse, Germany, Deaths, 1851-1958

Her son Moritz married Berta Blum on August 10, 1919, in Frankenau.

Marriage of Moritz Rosenberg and Berta Blum, Hessisches Hauptstaatsarchiv; Wiesbaden, Deutschland; Signatur: 3254, Year Range: 1919, Ancestry.com. Hesse, Germany, Marriages, 1849-1930

And then the family suffered another tragic loss when Joseph Rosenberg, the second oldest sibling, died at the age of 36 on May 4, 1922, as seen on his headstone below. Thank you to my cousin Michael Rosenberg for locating this image. According to the headstone, Joseph was a doctor.

Joseph was survived by his wife Bella Oppenheim and their son Kurt. More on their story in a post to come.

Finally, Isaac Rosenberg, the youngest child of Rebecca Blumenfeld and Mendel Rosenberg, married Bella Gans on December 22, 1922, in Niederaula, Germany.

saak Rosenberg marriage to Bella Gans, Hessisches Hauptstaatsarchiv; Wiesbaden, Deutschland; Bestand: 907; Laufende Nummer: 3665, Year Range: 1922, Ancestry.com. Hesse, Germany, Marriages, 1849-1930

When I look at the names of the daughter and the three daughters-in-law of Rebecca and Mendel—Blanka, Bella, Berta, and Bella—I have to wonder how confusing it must have been when they were all together. I can hear my mother-in-law running through the four names repeatedly before reaching the right one! (Click on the image immediately above to see the names of Rebecca’s family more clearly.)

Mendel Rosenberg died on December 22, 1928, in Marburg. He was 74 and was survived by three of his five children and, as we will see, many grandchildren.

Mendel Rosenberg death record, Hessisches Hauptstaatsarchiv; Wiesbaden, Deutschland; Personenstandsregister Sterberegister; Bestand: 5732; Laufende Nummer: 915, Ancestry.com. Hesse, Germany, Deaths, 1851-1958


  1. Kurt Rosenberg, World War II draft registration, National Archives at St. Louis; St. Louis, Missouri; Wwii Draft Registration Cards For New York City, 10/16/1940 – 03/31/1947; Record Group: Records of the Selective Service System, 147, Ancestry.com. U.S., World War II Draft Cards Young Men, 1940-1947