He is married to Aleida Nijboer.
Source: Civil register - Marriage
Archive location: Gelders Archief
General: Number of finding aid: 0207
Item number: 9119
Municipality: Oldebroek
Type of record: Huwelijksakte
Record number: 41
Registration date: 14-10-1915
Groom: Jacob de Haan
Age: 22
Place of birth: Oldebroek
Bride: Aleida Nijboer
Age: 20
Place of birth: Oldebroek
Father groom: Jan de Haan
Mother groom: Gerritje Lucht
Father bride: Jan Nijboer
Mother bride: Asselina Borst
Additional information: beroep bg.: spoorwgbeambte; beroep bruid: zonder beroep; beroep vader bg.: spoorwegbeambte; beroep moeder bg.: zonder beroep; beroep vader bd.: herbergier; beroep moeder bd.: zonder beroep
They got married on October 14, 1915 at Oldebroek, Gelderland, Netherlands .Source 1