Hijman Hakker, window dresser by profession, a son of Nathan Hakker and Esther Schelvis, was born on 1 May 1909 in Amsterdam. He married there on 27 November 1929 Dina Walvis, a daughter of Michel Walvis and Duifje Kat. Dina was born on 11 March 1910 in Amsterdam and was the eldest of the four children of Michel and Duifje.
After Hijman was married to Dina Walvis, he moved in with his mother-in-la…