Madam C. J. Walker, Mrs. Charles Joseph Walker upon her third marriage, was an American entrepreneur, philanthropist, and political and social activist. Walker is recorded as the first female self-made millionaire in America in the Guinness Book of World Records. Multiple sources mention that although other women (like Mary Ellen Pleasant) might have been the first, their wealth is not as well-documented.
Walker made her fortune by developing and marketing a line of cosmetics and hair care products for Black women through the business she founded, Madam C. J. Walker Manufacturing Company. Walker became known also for her philanthropy and activism. Walker made financial donations to numerous organizations such as the NAACP and became a patron of the arts. Villa Lewaro, Walker's lavish estate in Irvington, New York served as a social gathering place for the African-American community. At the time of her death, Walker was considered the wealthiest African-American businesswoman and wealthiest self-made Black woman in America.