Dolly Bieber served as the long-serving Treasurer of the World Jewish Congress (WJC), an international organization representing Jewish communities and advocating for Jewish interests worldwide, from the 1970s until approximately 2010 (confidence: 0.95). In this role, she was responsible for overseeing the financial operations of the WJC during a period that included significant global events affecting Jewish communities, such as the aftermath of the Holocaust, the Cold War, and rising antisemitism in various regions. Her tenure spanned over three decades, making her a pivotal figure in the organization's administrative leadership. Bieber's contributions helped ensure the financial stability of the WJC, enabling its diplomatic efforts, humanitarian aid, and advocacy work. Limited public information is available on her personal background, early life, or other professional activities beyond this role.