Angelou credits a teacher and friend of Angelou's family, a Mrs. Bertha Flowers, with helping her speak again. Flowers introduced her to authors such as Dickens, Shakespeare, Poe, Douglas Johnson, and James Weldon Johnson, as well as black female artists like Frances Harper, Anne Spencer, and Jessie Fauset. When Angelou was 13, she and her brother returned to live with her mother in San Francisco. During World War II, she attended George Washington High School and studied dance and drama on a scholarship at the California Labor School. Before graduating, she worked as the first black female streetcar conductor in San Francisco.