Boterdiep 33 a, Groningen Previous house Next house Residents in June 1941 Lazarus van Gelder 1885 - 1942 Eva van Gelder-van Dam 1886 - 1942 Eliazer van Gelder 1917 - 1943 Rudolf van Gelder 1915 - 1943 Allagonda Stern-van Gelder 1914 - 1942