Sara Boers, a daughter of Philip Boers and Eva Goslinksi, married Philip Mok, a son of Salomon Mok and Rachel Polak, The couple had two daughters: Eva Roosje and Reiny. Mother and daughters have been killed on 23 July 1943 in Sobibor. Father Philip lost his life in Monowitz on 6 January 1944.
City Archive of Amsterdam, genealogical research to the Mok family by the City Archive and the websites www.wiewaswie.nl and Allegroningers.nl.