Leentje Overste was a daughter of Simon Overste and Esther van Collem. She married 18 December 1935 in Amsterdam to Barend Duis, son of Samuel Duis and Judith Duis.
Leentje had a brother and four sisters who did not survive the Holocaust either: David, Grietje, Rachel, Duifje and Sophie.
City Archive of Amsterdam, archive card of Barend Duis and website www.wiewaswie.nl.