After several weeks focused on updates on Berthold Rothschild and other topics, I now will return to the other children of Meier Rothschild and Bertha Lorge. As with the three oldest children of Meier Rothschild and Bertha Lorge, Berthold, Theodor, and Gertrud, I struggled to learn more about what happened to their fourth child Siegfried Friedrich Rothschild and his family during and after the Holocaust.
I have no actual records or even indices of records that show where Siegfried and his wife Gisela Katz and sons were in the 1930s or 1940s, but multiple factors indicate that they went to Palestine/Israel. First, there are some entries on the IGRA website for a Zigfried Rotschild, and that could be Siegfried, but I cannot be certain. Secondly, one of Siegfried’s sons used the name Zeev Rotem; and that may indicate that the family was at least for some time in Israel because Zeev is a common Israeli name and Rotem is a Hebrew term for the tamarisk plant found in Israel. I doubt that Zeev was born with that name in Germany, but rather that it is a name he adopted in Israel. But these are just circumstantial bits of evidence, nothing definitive.
But my assumption that the family went to Israel at some point is also reinforced by the grave memorials I found on the Gravez site for both Siegfried and Gisela. Siegfried died on September 14, 1972, and Gisela died on December 26, 1998. They are both buried in the same cemetery in Tel Aviv, Israel. Does that mean they lived in Israel or that they had spent the war years in what was then Palestine? No. Many are buried in Israel who did not live there. But all these clues together support an assumption that Siegfried and Gisela and their sons lived for some time in Israel.
Their son Zeev may have spent time in Israel, but according to this death record, he had been a professor at the University of British Columbia in Canada for nine years when he died at the age of 46 on November 20, 1973, in Vancouver, Canada. He was survived by his wife and children. He had been a professor in the mechanical engineering department, according to a death notice located online.

Zeev Rotem death certificate, Zeev Rotem, Birth Circa 1927, Death Nov 20 1973, Vancouver, British Columbia, Age at death 46, Registration # 1973-09-016282, BCA microfilm # B13328
GSU microfilm # 2050141, Canada, British Columbia deaths, MyHeritage at https://www.myheritage.com/research/record-20459-596398-/zeev-rotem-in-canada-british-columbia-deaths?indId=externalindividual-b78e16dee8e36e46fe53394e9101649b&trn=partner_Geni&trp=logged_out_matches_module
As you can see, this record ties Zeev Rotem to Gisela Katz, his mother, and to “Frederick Rotem.” Siegfried’s middle name was Friedrich, and my guess is that this is how the informant remembered Zeev’s father’s name.
As for Gunther Michael Rothschild, Zeev’s younger brother and the youngest grandchild of Meier Rothschild and Bertha Lorge, a search on FamilySearch turned up some very helpful documents. First, I found his Declaration of Intention to become a US citizen. That document revealed that Gunther Michael Rothschild was living in Detroit, Michigan, when he filed the declaration on November 27, 1953. It also revealed that he had arrived in the US on July 29, 1952. Finally, it reported that Gunther was a citizen of Israel, proof that he had been living in Israel and more evidence suggesting that the other members of his family had as well.

Gunther Michael Rothschild dec of intent, “Michigan, Naturalization Records, 1837-1997”, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:CLHY-RRPZ : Thu Apr 10 18:17:38 UTC 2025), Entry for Gunther Michael Rothschild, 27 Nov 1953.
I had no idea why Gunther Michael would have been living in Detroit until I found his petition for naturalization on FamilySearch. Gunther Michael Rothschild became a US citizen on August 22, 1957.On his petition he again stated he was a citizen of Israel and that he was living in Detroit but added that he was a student. Most helpful were the names of the witnesses who supported the petition, in particular a man named Louis L. Friedland who identified himself as a professor.

“Michigan, Naturalization Records, 1837-1997”, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:CV38-FWZM : Thu Apr 10 14:56:55 UTC 2025), Entry for Gunther Michael Rothschild.
I googled “Louis L. Friedland” and learned that he had been a professor at Wayne State University in Detroit. Further googling uncovered a commencement program from Wayne State in 1958 that listed G. Michael Rothschild as a candidate for a bachelor’s of science degree in industrial engineering.
A passenger manifest from August 1958 lists Michael Rothschild, as he seemed to be known in the US, as a passenger coming from the US, his permanent residence, going to England for two weeks. His occupation was a student. A few months later in December 1958 he is listed on a passenger manifest card as a US citizen residing in Detroit, Michigan. I found several records showing him traveling between the US and England during the 1950s and 1960s as well.1
Some records from Ancestry’s “Public Records” Index list Gunther living in various places in the US over many years including into the 2000s.2 I could not find, however, any news articles or other records revealing more about him. I don’t know whether Gunther Michael Rothschild ever married or had children. According to the Social Security Applications and Claim Index entry for Gunther Michael Rothschild, he died on October 10, 2007.3 Entries on FamilySearch and Geni indicate he was buried in Tel Aviv, but I cannot find his grave on Gravez or anywhere else. So perhaps he was living in the US, perhaps at some point he’d returned to Israel. I sent a message to the manager of his profile on MyHeritage, and perhaps I will learn more.
Piecing this all together, it seems safe to assume that at some point the family of Siegfried Friedrich Rothschild lived in Israel, but their son Zeev spent years in Canada and their son Gunther Michael spent many years in the US. If and when I learn more, I will update the blog.
Coming soon! Ten days until the release of The Women Before Us on Amazon! You can pre-order the Kindle version now and both paperback and Kindle versions will be released on June 20.
- Michael Rothschild, Arrival Age 27, Birth Date 11 Mar 1931, Port of Departure New York, New York, USA, Arrival Date 2 Aug 1958, Port of Arrival Southampton, England, Ports of Voyage New York and Galway, Ship Name Ryndam, Shipping Line Escombe, McGrath and Company Ltd, Official Number 7767/20, The National Archives in Washington, DC; London, England, UK; Board of Trade: Commercial and Statistical Department and Successors: Inwards Passenger Lists; Class: Bt26; Piece: 1410; Item: 74, Ancestry.com. UK and Ireland, Incoming Passenger Lists, 1878-1960. There are several passenger cards for him leaving from the US in Ancestry. ↩
- E.g., Michael M Rothschild, [G Michael Rothschild], [Gunther M Rothschild], [Michael G Rothschild], Birth Date Mar 1931, Residence Date 2002-2020, Residence Shokan, New York, USA, Postal Code 12481, Second Residence Date 2001-2012, Second Residence Norwich, Connecticut, USA, Second Postal Code 06360, Third Residence Date 2002-2012, Third Address Po Box 403, Third Residence Shokan, New York, USA, Third Postal Code 12481, Ancestry.com. U.S., Index to Public Records, 1994-2019 ↩
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Michael Rothschild, [Gunther Michael Rothschild], [G Rothschild], Gender Male
Race White, Birth Date 11 Mar 1931, Birth Place Werezmunde, Federal Republic of Germany, Death Date 10 Oct 2007, Father Sigfried F Rothschild, Mother Giseca Katz
SSN 078284849, Notes Aug 1952: Name Listed As Michael Rothschild; Nov 1952: Name Listed As Gunther Michael Rothschild; 21 Jun 2005: Name Listed As G Michael Rothschild; 22 Dec 2007: Name Listed As G M Rothschild, Ancestry.com. U.S., Social Security Applications and Claims Index, 1936-2007 ↩


































