He is married to Maria Pekaar.
They got married on April 6, 1871 at Yerseke, Nederland , he was 31 years old.Source 1
Child(ren):
Aktedatum : 05-10-1839, aktenummer (number) : 21
Geboren te (born in) : Yerseke, op (on) 05-10-1839
Jan Kosten
Zoon van :
VADER (father) : Jacob Kosten
MOEDER (mother) : Ida van Boven
Bron :
Zeeuws Archief, Geboorteakten Yerseke 1811-1910. Toegevoegd : 20 december 2010