On 25 May 1877 when Willem was 31, he married
Lammechien Kruit, daughter of
Jannes Kruit (17 Nov 1820-28 Sep 1898) &
Hinderkien Jans Boerma (3 Feb 1822-18 Mar 1893), in Emmen, Drenthe.
538 Born on 23 Aug 1852 in Bonnerveen (Gieten), Drenthe.538 Lammechien died in Groningen, Groningen, on 1 Jul 1929; she was 76.538