He is married to Janke Venema.
They got married on May 27, 1850 at Grootegast (Gr), he was 34 years old.Source 4
Child(ren):
grandparents
parents
brothers/sisters
children
Jan Willems Postema | |||||||||||||||||||||||||||||||||||
1850 | |||||||||||||||||||||||||||||||||||
Janke Venema | |||||||||||||||||||||||||||||||||||
Geboorteregister Grootegast 1816
Overlijdensregister Grootegast 1885
https://www.graftombe.nl/names/info/2028850/postema
Huwelijksregister Grootegast 1850