He is married to Arjaantje Nederlof.
They got married on December 30, 1893 at Sliedrecht, Zuid Holland, Nederland , he was 25 years old.Source 2
"Pedigree Resource File," database, FamilySearch (https://familysearch.org/ark:/61903/2:2:33Z1-12D : accessed 4 November 2019), entry for Klaas /Bakker/; file (2:2:2:MMD8-H5Y), submitted 2 December 2013 by jd8 [identity withheld for privacy].