He is married to Trijntje van der Laan.
They got married on May 15, 1897 at Tietjerksteradeel, Friesland, Nederland, he was 29 years old.Source 3
grandparents
parents
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Folkert Hendriks de Boer | ||||||||||||||||||
1897 | ||||||||||||||||||
Trijntje van der Laan | ||||||||||||||||||
Geboorteregister 1867, Tietjerksteradeel
http://www.graftombe.nl/names/info/7230/boer_de
Huwelijksregister 1897, Tietjerksteradeel