Mietje Loeza was a daughter of Barend Loeza and Grietje Moscoviter. He married 23 December 1931 to Cornelis Cosman, a son of Salomon Cosman and Aagje Bobeldijk.
Mietje had another sister and a brother, who also have been killed during the Holocaust: Naatje and Abraham.
Stadsarchief Amsterdam, archiefkaart Barend Loeza en website www.wiewaswie.nl.