Sara-Ruth Schumann was born Hedwig Abraham in Bremen in 1938. She survived the Second World War in hiding and moved to Oldenburg with her husband and son in 1968. Initially a member of the Protestant Church, she converted to the Jewish faith in 1990 and was strongly committed to the reconstruction of the Oldenburg Jewish Community. As First Chairwoman of the congregation, she succeeded in bringing the first Rabbi Bea Wyler to Oldenburg. She led the congregation to a non-Orthodox Judaism, in which women are equal to men.

Samuel Lazarus (October 13, 1887-November 1982) was born, like his three siblings Simon, Rosa and Paul, in Stapelmoor. He served the German Army in World War I and married Gerta Jacobs in 1922, with whom he lived at Damm 30 in Oldenburg that same year, where they raised their joint children Jan, Claus and Ilse. Samuel worked in the Oldenburg cattle trade and ran his own cattle and horse business. Before he was deported to Theresienstadt with Gerta and Ilse, the three of them lived in Hamburg.

Heimann Cohen, son of Victor Feibel Cohen (1836-1900) and Minchen Cohen, née Breslauer (1844-1913), was one of eleven children. His siblings were: Schoontje Josephs-Cohen (1864-1944), Philipp Victor Cohen (1866-1943), Bernhard Cohen (1868-1932), Mathilda Hakkert-Cohen (1869-1943), Johanna Cohen-Juchenheim (1872-1943), Georgine Hakkert-Cohen (1874-1925), Elise van Gelder-Cohen (1876-1943), Wolf Wilhelm Cohen (1877-1913), Leeser Cohen (1881-unknown), and Moritz Cohen (1890-1943).