 One account recalls that her mother, Emma Johnson, thought that the family's original surname was "not Jewish enough" for her daughter to become a star.Researcher Henry Louis Gates Jr. found that all of Goldberg's traceable ancestors were African Americans, that she has no known German or Jewish ancestry, and that none of her ancestors were named Goldberg.Results of a DNA test, revealed in the 2006 PBS documentary "African American Lives", traced part of her ancestry to the Papel and Bayote people of modern-day Guinea-Bissau.