Duifje Lap, a daughter of Levie Lap and Naatje Visser, was the 2nd spouse of the widower of Mietje Blik, Aron (Arie) Leeuwaarden. She married him on 6 August 1941 in Amsterdam but was previously married to Abraham van Gelderen, who passed away in Amsterdam on 25 December 1938. From the marriage with Abraham van Gelderen her two children have been born: Reintje and Anna.
City Archive of Amsterdam, archive card of Duifje Lap