Renee Powell and Althea Gibson were the first two African-American female golfers on the LPGA Tour. In what other sport did Gibson win major championships?
Althea Gibson: Althea Gibson (August 25, 1927 – September 28, 2003) was an American tennis player and professional golfer, and the first black athlete to cross the color line of international tennis. Althea Gibson:  In 1956, she became the first person of color to win a Grand Slam title (the French Open). Althea Gibson:  The following year she won both Wimbledon and the U.S. Nationals (precursor of the U.S. Open), then won both again in 1958, and was voted Female Athlete of the Year by the Associated Press in both years.
i don't know