Salomon Crost, son of Levie Crost and Catharina Sluijter, married Sientje Bas on 6 November 1929, a daughter of Abraham Bas from Amsterdam and Chaje Trobuschicht from Odessa. With her he had two children. Their son Harry, born in 1932, passed away in 1933. The couple diviorced in January 1941. Sientje Bas married in November 1941 a non-Jewish man and deceased in July 1945 in Switzerland. The other child most likely stayed with her stepfather and survived the Holocaust.
Salomon Crost married 19 February 1941 Sientje Wijn, who had a son from her first marriage: Johan Wijn. Salomon Crost has been killed 30 September in Auschwitz. His wife Sientje Wijn and his stepson Johan were already killed in Auschwitz on 23 July 1942.
City Archive of Amsterdam,. archive cards of Salomon Crost, Sientje Bas en Sientje Wijn.