This is from https://www.imdb.com/name/nm0151919/bio
She was the daughter of Adelaide (Glaser) and George Channing (who was born George Christian Stucker). Carol's paternal grandfather, George Stucker, was the son of German immigrants, and Carol's paternal grandmother, Clara, was African-American. Carol's maternal grandparents, Otto Glaser and Paulina Ottmann, were both of German origin. Carol stated in her autobiography, "Just Lucky, I Guess", that her father, who was light-skinned, used one accent to help "pass" in the white world and another around the house, where he sang gospel music to entertain his daughter.