Singelstraat 8 bis, Utrecht Previous house Next house Residents in June 1941 Carel Knorringa 1891 - 1943 Racheltje Knorringa-Pais 1897 - 1943 Benjamin Knorringa 1930 - 1943 Elias Arend Salomon Knorringa 1926 - 1943 Alexander Carel Louis Knorringa 1924 - 1943