Iosif Nemizansky Gendel family portrait 1913 Isaac and Sofia Svoisky 1915 Isaac and Boris Svoisky 1936 Boris Svoisky 1940 Rosa Svoisakya 1940 Tatiana Nemizanskaya during her student years 1941 Minna Svoiskaya 1942 Tatiana Nemizanskaya's guerilla certificate 1944 Sofia Svoiskaya 1970