Izaäk ten Bosch was the son of Sallie ten Bosch and Sophie Schnitseler. He married Betje Nort in 1918 in Den Bosch. In 1941 they divorced.
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Izaäk ten Bosch remarried on the 4th of February 1942 in Amsterdam with Mietje Kropveld.
City Archive of Amsterdam, card Izaäk ten Bosch and Mietje Kropveld