He is married to Cornelia Evertse.
They got married on November 11, 1869 at Yerseke, Nederland , he was 25 years old.Source 1
Child(ren):
Aktedatum : 04-11-1844, aktenummer (number) : 31
Geboren te (born in) : Yerseke, op (on) 03-11-1844
Cornelis Kosten
Zoon van :
VADER (father) : Jacob Kosten
MOEDER (mother) : Ida van Boven
Bron :
Zeeuws Archief, Geboorteakten Yerseke 1811-1910. Toegevoegd : 20 december 2010