New Haven (Conn.)

The Ernst Traugott Rosenzweig Collection contains personal papers, correspondence, a small amount of photographs, and a Hebrew Purim megillah scroll.

This collection contains materials on various members of the related Breslauer, Schäffer, and Heilberg families found in the records of Marianne Breslauer, her daughter Helen J. Breslauer, and her maternal aunt Frieda Heilberg. The lives of these family members and their relationships with each other are documented through correspondence, photographs, vital documents, professional and educational records, diaries, and family trees.

Correspondence includes primarily letters and postcards from [Salli] Ziemke in Danzig, then Germany, to his son Karl and his son’s family in New Haven, Connecticut, as well as correspondence from other relatives in Mława, Poland, to Karl Ziemke and his wife, 1939-1941. Also included are various materials pertaining to Karl Ziemke’s dental laboratory in Danzig and in New Haven.

This collection mainly consists of documents pertaining to the lives of Louis and Grete Rosenzweig. There are several personal documents, such as letters or diaries, as well as official documents concerning, for example, Louis's occupational career.