Jacob married Dirkje Pottuijt on 4 Feb 1888 in Alblasserdam. Dirkje (daughter of Pieter Pottuit and Janna de Groot) was born on 11 Nov 1865 in Alblasserdam; died on 30 Apr 1945 in Voorburg. [Group Sheet] [Family Chart]
Wilhelm married Maria Hendrika Noord. [Group Sheet] [Family Chart]