Israël van Polen was a son of Isak van Polen and sara Wijsenbek. He married 16 August 1906 in Amsterdam Esther Mulder, who was born in 1867 as a daughter of Moses Salomon Mulder and Hendrika Gendering. (her sister Mirjam Mulder married later Emanuel Mossel) The Van Polen couple had two daughters, namely Sara Hendrika (Suze) in 1909 and Hendrika in 1911. Sara Hendrika (Suze) was killed in the Shoah…