Of the fourteen children of Emanuel Oudkerk (1853) and Jegeva Sloog (1850), the three daughters Eva, Vrouwtje and Reintje remained unmarried. They were murdered during the Holocaust in Sobibor. The three sisters were born in Den Helder: Eva on 27 June 1884 and Vrouwtje on 2 September 1885, both at the time when Emanuel Oudkerk and his wife and children still lived at Vlootstraat 47 in Oud Den Held…