In 1964, at the age of 37, Gibson became the first African-American woman to join the Ladies Professional Golf Association (LPGA) tour. Racial discrimination continued to be a problem: Many hotels still excluded people of color, and country club officials throughout the south—and some in the north—routinely refused to allow her to compete. When she did compete, she was often forced to dress for tournaments in her car because she was banned from the clubhouse. Although she was one of the LPGA's top 50 money winners for five years, and won a car at a Dinah Shore tournament, her lifetime golf earnings never exceeded $25,000. She made financial ends meet with various sponsorship deals and the support of her husband, William Darben, brother of best friend and fellow tennis player Rosemary Darben, whom she married in 1965 (and divorced in 1976).