Career
The date of her death is not known for certain. Pendleton was an African-American community activist and a teacher in Washington’s public schools. She was also active in several other women's race organizations, both as a secretary and vice president
Pendleton was a strong influence in her community.
As a community activist, she dedicated herself to the improvement of African Americans through children's education. Based on her personal experiences as an educator and activist, she wrote A Narrative of the Negro, published in 1912.
Pendleton did her research at the Library of Congress and the libraries of Yale and Harvard. She also wrote An Alphabet for Negro Children, Frederick Douglass: A Narrative, and two stories for children that were published in The Crisis, the official magazine of the National Association for the Advancement of Colored People (National Association for the Advancement of Colored People), founded in 1910.