Marianna Loonstein was a daughter of Emanuel Jacob Loonstein and Saartje Boutelje. She married 25 may 1880 in Den Helder to Levi Polak, a son of Philip Polak and Mietje de Jong. The couple had eleven children, of whom two sons have died in childhood: one son aged 7 and the other only 9 months old. One daughter has suvived the war; one son moved to London but the other seven children, Mietje, Eman…