Willem married Hillegonda Marissen on 16 July 1845 in Odoorn, Drenthe, Nederland. Hillegonda (daughter of Harm Marissen and Grietien Nijman) was born on 29 April 1816 in Odoorn, Drenthe, Nederland; died on 21 November 1907 in Odoornerveen, Odoorn, Drenthe, Nederland. [Group Sheet] [Family Chart]

1. Albertus Oving was born on 07 June 1848 in Exloo, Odoorn, Drenthe, Nederland; died on 13 July 1920 in Odoornerveen, Odoorn, Drenthe, Nederland.
2. Harm Oving was born on 31 March 1851 in Exloo, Odoorn, Drenthe, Nederland; died on 28 April 1915 in Dalen, Drenthe, Nederland.
3. Mans Oving was born on 04 October 1853 in Exloo, Odoorn, Drenthe, Nederland; died on 23 August 1934 in Stadskanaal, Groningen, Nederland.
4. Jans Oving was born on 16 March 1856 in Exloo, Odoorn, Drenthe, Nederland; died on 08 January 1904 in Exloo, Odoorn, Drenthe, Nederland.