Isaac Aandagt was a son of Jacob Aandagt and Rebecca Sliet. He married 29 April 1925 in Amsterdam to Aaltje Kool, a daughter of Elias Kool and Elisabeth Elzas, but they divorced 22 September 1934. The couple had six children: Jacob, Elias, Rebecca, Joseph and Elisabeth. Their sixth child has been born after the divorce, named Asser, who stayed with his mother.
On 19 December 1934, Isaac Aandagt ma…