Sientje Leman was a daughter of Abraham Leman and Catharina Polak. Since May 1929 she lived in Amsterdam at various addresses but per 20 January 1940 she lived again with her father Abraham Leman and her stepmother Henriette Bamberg at Eerste Oosterparkstraat 161 hs.
City Archive of Amsterdam, archive cards of Sientje Leman and Abraham Leman.
Person is in the National Database of Victims of Persecution