Given name: Miriam Family name: Heinsdorf

She lived in Lublin until 1939, when she moved with her family to Warsaw. There, Miriam joined Haszomer Hacair. During the war, she was active in Haszomer Hacair's headquarters, visited different contact points (gniazda) of the organisation in the occupied Poland. In the ghetto, she kept in touch with Histadrutu's bureau in Geneva. She was a member of the Jewish National Committee (ZKN). In the uprising, she fought in Szlomo Winogron Haszomer Hacair combat group at the Schilling's shop. She stayed in the ghetto. Details of her death remain unknown.