Professor Rankestraat 39 a, Groningen Previous house Next house Residents in June 1941 Bernard Aptroot 1893 - 1943 Margaretha Martha Aptroot-van Delft 1897 - 1942 Lazarus Leo Aptroot 1932 - 1942 Alfred Aptroot 1928 - 1942 Julius Aptroot 1921 - 1945 Helena Grietje Aptroot 1920 - 1942