Address: Praha 7, Dobrovského 375/15, (2011)
Ida Welsová née Kohn was born 6 July 1894. Her parents were Edmund Kohn Krafft (1862-1935) and Therese née Fürth (born 1871). She had four siblings: Gustav (born 1892), Ernst (born 1895), Walter (born 1897) and Ilsa (born 1903, later Mandl-von Tupay-Isertingen). She was married to Rudolf Wels. The couple had two sons, Thomas Albert (born on 7 June 1920 in Cheb) and Martin (born 1925). The last residence of the family before deportation was in Prague XII, Mánesova 53. On 30 January 1942, Ida Welsová, her husband and her younger son were arrested and deported to Theresienstadt concentration camp by transport V. Her transport number was 838 of 1,002. Nineteen months later, on 6 September 1943, the family was deported to Auschwitz concentration camp by transport Dm. Her transport number was 2767. Mother, father and son were murdered by the Nazi regime.

Her son Thomas Albert could survive, he died on 18 September 1988 in Gloucester, England. Her brother Walter was killed in 1942 in Belarus. The fate of her siblings Gustav and Ilsa is unknown. Her brother Ernst could survive, he died in 1984 in Chicago.