Союз коммунистов Югославии
Mara Naceva was born on September 28, 1920, in Kumanovo. In 1936, at age sixteen, Mara became a member of the Young Communist League of Yugoslavia, and in 1939 a member of the League of Communists of Yugoslavia. Because of her participation in the strike movement, she had to leave Kumanovo and go to Niš, where she also joined the party activities of the League of Communists of Yugoslavia. In 1940, Naceva became a member of the Local Committee and the District Committee of the League of Communists of Yugoslavia for Niš and participated as a delegate from Serbia, in the fifth ground conference of the League of Communists of Yugoslavia held in Zagreb.