In 1950, Jakob married Hanna-Ruth Schindler, a girl he had known since his first days in Shavei Zion and with whom he had grown up.

The married couple Reuven and Esther Schindler had fled from Munich in 1939 with three daughters and a son to the cooperative in Shavei Zion.

Jakob and Hanna-Ruth got the daughters Miriam, Nurit and Ofra.