Salomon Prins, born 27 March 1877 in Den Helder and his sister Vrouwtje, who was born there on 3 April 1873, were children of Jacob Nathan Prins and Sophia Speijer. Vrouwtje remained unmarried. Salomon married 29 May 1907 in Den Helder Koosje Salomon Kannewasser (Gittel), a daughter of Salomon Aron Kannewasser and Jansje (Jente) Leon Beek. Salomon and Koosje had two children together, namely Salom…