Liebel Bergman is the father of Lincoln Bergman.
Bergman joined the Communist Party USA in the 1930s, and was a founding member of the Progressive Labor Party. He also went on the found the Revolutionary Union and the Revolutionary Workers Headquarters.
In the 1970s Vicki Garvin married Liebel Bergman, and joined the Revolutionary Communist Party with him. They both went on to join the Revolutionary Workers Headquarters, until the marriage broke up and Vicki Garvin pulled out.
- [Want to Start a Revolution?: Radical Women in the Black Freedom Struggle edited by Dayo F. Gore, Jeanne Theoharis, Komozi Woodard page 88]