Louis van Gelderen was a son of Abraham van Gelderen and Mietje Zilverberg. He married 5 August 1942 to Grietje Polak, a daughter of Mozes Polak and Schoontje Koster.
When his mother died on 19 April 1931, his father remarried on 7 December 1932 in Amsterdam to Saartje van Gelder. His father passed away in October 1939.
Louis had four sisters who have survived the war. His other siblings, Betje, R…