Billie Jean King was 20 and Larry 19 years old and married on September 17, 1965 in Long Beach. King's triumph at the French Open in 1972 made her only the fifth woman in tennis history to win the singles titles at all four Grand Slam events, a "career Grand Slam." She also won a career Grand Slam in mixed doubles. In women's doubles, only the Australian Open eluded her. King won a record 20 career titles at Wimbledon – six in singles, 10 in women's doubles, and four in mixed doubles. King played 51 Grand Slam singles events from 1959 through 1983,
Owen Davidson Owen Davidson Owen Keir Davidson (born 4 October 1943) is a former professional tennis player of the 1960s and 1970s. Partnering Billie Jean King, Davidson won eight grand slam mixed doubles titles. In 1967 he won a calendar year slam for mixed doubles, when he won the Australian Championships (with Lesley Turner Bowrey), and the French Championships, Wimbledon and the US Championships (with King). Davidson became the first player to win a match in the open era of tennis when he defeated John Clifton in the first round of the British Hard Court Championships in Bournemouth played in April 1968.