By the CNN Wire Staff
(CNN) -- Barbara Graves, who helped her husband launch Black Enterprise magazine in 1970, died Friday after a three-year battle with gall bladder cancer, the company said.
Graves, 75, died at Howard University Hospital in Washington, D.C.
Graves was an elementary school teacher before helping her husband, Earl G. Graves Sr., launch the magazine. She "held every major position, including editorial director, circulation director and chief financial officer."
The businesswoman also was co-founder of the Black Enterprise Women of Power Summit, which describes itself as "a professional leadership conference designed especially for executive women of color," and is a known as a major networking event.