Salomon Groen was a son of Abraham Groen and Vrouwtje Appelboom. He married Debora Theeboom in Amsterdam on 27 March 1935, a daughter of Philip Theeboom and Catharina Voorzanger. With Debora, he had three children, of whom Philip Reini was born in Camp Westerbork on 7 July 1943. He died there one month later on 3 August 1943, was cremated and the urn with his ashes was placed in the Jewish Cemetery in Diemen. His other children, Vrouwtje and Abraham were killed in Auschwitz, together with their mother on 3 September 1943. Salomon self was killed in Auschwitz on 31 March 1944.
City Archive of Amsterdam, archive card of Salomon Groen, Philip Theeboom and website www.wiewaswie.nl (death certificate of Philip Reini Groen).