Bettus van Gelder, also called Ben, was the youngest son of Benjamin van Gelder and Johanna Mogendorff. He was born in Dedemsvaart, municipality of Avereest on 20 June 1915. He was unmarried, however in the Joodsche Weekblad (Jewish Weekly) nr. 18 of 8 August 1941 an announcent had been placed about the engagement of “Liny van Straten from Rumpt and Ben van Gelder from Eibergen”. Lina van Strat…