Jacob Pieter Kasteleijn ⁶

Jacob married Antonia van Laar, daughter of Willem van Laar and Maria Duits, on 28 february 1893 in Polsbroek.⁶ (Antonia van Laar was born in 1870 in Ede ⁶ and died on 9 march 1903 in Polsbroek ⁶.)

Jacob also married Jannetje van Dijk, daughter of Adrianus van Dijk and Neeltje Verschuur, on 14 august 1903 in Polsbroek.⁶ (Jannetje van Dijk was born in 1880 in Waddinxveen ⁶.)