Simon Meijer was a son of Salomon Meijer and Sara Glaser. He married 10 May 1922 in Amsterdam to Schoontje Engelsman, a daughter of Isaac Engelsman and Rebekka van der Sluis. Schoontje however passed away on 7 February 1936. The couple had two children: Sara and Isaac.
After the dead of Schoontje, Simon Meijer remarried on 14 December 1938 to Esther Haring, a daughter of David Haring and Jetje Ko…