Jan married Trijntje Folkerts van der Wal, daughter of Folkert Jelles van der Wal and Grietje Sikkes Mellema, on 8 Jul 1917. (Trijntje Folkerts van der Wal was born on 23 Aug 1886 and died on 9 Jan 1975 in Drachten Smallingerland Friesland Netherlands.)
