He is married to Aaltjen Wegman.
They got married on April 17, 1880 at Goor, Overijssel, Nederland .Source 1
"Netherlands, Archival Indexes, Vital Records," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:QLN9-SRXY : 30 August 2017), Jan Dufour, Death 09 Sep 1939, Raalte, Overijssel, Nederland; from database, openarchives (https://www.openarch.nl : 2016); citing Raalte 1811-1942, archive 0123, inventory number 10964, record number 89; Raalte 1811-1942; Historisch Centrum Overijssel.