Margaret Osborne duPont was a world No. 1 American female tennis player.
Althea Louise Brough Clapp was an American tennis player. In her career between 1939 and 1959, she won six Grand Slam singles titles as well as numerous doubles and mixed-doubles titles. At the end of the 1955 tennis season, Lance Tingay of the London Daily Telegraph ranked her world No. 1 for the year.
Beverly Baker Fleitz was a women's tennis player from the United States who was active in the late 1940s and during the 1950s. According to John Olliff and Lance Tingay of The Daily Telegraph and the Daily Mail, Fleitz was ranked in the world top 10 in 1951, 1954, 1955, 1958, and 1959, reaching a career high of World No. 3 in those rankings in 1954, 1955, and 1958. Fleitz was included in the year-end top 10 rankings issued by the United States Lawn Tennis Association from 1948 through 1951 and in 1954, 1955, 1958, and 1959. She was the top-ranked U.S. player in 1959. She was ambidextrous and played with two forehands.
The 1949 French Championships was a tennis tournament that took place on the outdoor clay courts at the Stade Roland-Garros in Paris, France. The tournament ran from 18 May until 29 May. It was the 53rd staging of the French Championships, and the second Grand Slam tennis event of 1949. Frank Parker and Margaret Osborne duPont won the singles titles.
The 1950 French Championships was a tennis tournament that took place on the outdoor clay courts at the Stade Roland-Garros in Paris, France. The tournament ran from 24 May until 4 June. It was the 54th staging of the French Championships, and the second Grand Slam tennis event of 1950. Budge Patty and Doris Hart won the singles titles.
The 1942 U.S. National Championships was a tennis tournament that took place on the outdoor grass courts at the West Side Tennis Club, Forest Hills in New York City, United States. The tournament ran from 27 August until 7 September. It was the 62nd staging of the U.S. National Championships and due to World War II it was the only Grand Slam tennis event of the year.
The 1943 U.S. National Championships was a tennis tournament that took place on the outdoor grass courts at the West Side Tennis Club, Forest Hills in New York City, United States. The tournament ran from 1 September until 6 September. It was the 63rd staging of the U.S. National Championships and due to World War II it was the only Grand Slam tennis event of the year.
The 1944 U.S. National Championships was a tennis tournament that took place on the outdoor grass courts at the West Side Tennis Club, Forest Hills in New York City, United States. The tournament ran from 30 August until 4 September. It was the 64th staging of the U.S. National Championships and due to World War II it was the only Grand Slam tennis event of the year.
The 1945 U.S. National Championships was a tennis tournament that took place on the outdoor grass courts at the West Side Tennis Club, Forest Hills in New York City, United States. The tournament ran from 28 August until 3 September. It was the 65th staging of the U.S. National Championships, and due to World War II it was the only Grand Slam tennis event of the year.
The 1946 U.S. National Championships was a tennis tournament that took place on the outdoor grass courts at the West Side Tennis Club, Forest Hills in New York City, United States. The tournament ran from 31 August until 8 September. It was the 66th staging of the U.S. National Championships, and the fourth Grand Slam tennis event of the year.
The 1947 U.S. National Championships was a tennis tournament that took place on the outdoor grass courts at the West Side Tennis Club, Forest Hills in New York City, United States. The tournament ran from 6 September until 14 September. It was the 67th staging of the U.S. National Championships, and the fourth Grand Slam tennis event of the year.
The 1948 U.S. National Championships was a tennis tournament that took place on the outdoor grass courts in the United States. The men's and women's singles events as well as the mixed doubles were held at the West Side Tennis Club, Forest Hills in New York City, while the men's and women's doubles events were played at the Longwood Cricket Club in Chestnut Hill, Massachusetts. The tournament ran from 10 September until 19 September. It was the 68th staging of the U.S. National Championships, and the fourth Grand Slam tennis event of the year. Pancho Gonzales and Margaret Osborne duPont won the singles titles.
The 1950 U.S. National Championships was a tennis tournament that took place on the outdoor grass courts at the West Side Tennis Club, Forest Hills in New York City, United States. The tournament ran from 25 August until 5 September. It was the 70th staging of the U.S. National Championships, and the fourth Grand Slam tennis event of the year. A highlight of that year's tournament was Margaret Osborne du Pont's triple crown.
The 1953 U.S. National Championships was a tennis tournament that took place on the outdoor grass courts at the West Side Tennis Club, Forest Hills in New York City, United States. The tournament ran from 29 August until 7 September. It was the 73rd staging of the U.S. National Championships, and the fourth Grand Slam tennis event of the year.
The 1954 U.S. National Championships was a tennis tournament that took place on the outdoor grass courts at the West Side Tennis Club, Forest Hills in New York City, United States. The tournament ran from 28 August until 6 September. It was the 74th staging of the U.S. National Championships, and the fourth Grand Slam tennis event of the year.
The 1955 U.S. National Championships was a tennis tournament that took place on the outdoor grass courts at the West Side Tennis Club, Forest Hills in New York City, United States. The tournament ran from 2 September until 11 September. It was the 75th staging of the U.S. National Championships, and the fourth Grand Slam tennis event of the year.
The 1957 U.S. National Championships was a tennis tournament that took place on the outdoor grass courts at the West Side Tennis Club, Forest Hills in New York City, United States. The tournament ran from 30 August until 8 September. It was the 77th staging of the U.S. National Championships, and the fourth Grand Slam tennis event of the year.
Maureen Connolly was the two-time defending champion and successfully defended her title, defeating Doris Hart 6–2, 6–4 in the final to win the women's singles tennis title at the 1953 U.S. National Championships. With this win, she became the first woman in history to win a Grand Slam.
Third-seeded Margaret Osborne duPont defeated Louise Brough 4–6, 6–4, 15–13 in the final to win the women's singles tennis title at the 1948 U.S. National Championships.
Second-seeded Doris Hart defeated Louise Brough 6–8, 6–1, 8–6 in the final to win the women's singles tennis title at the 1954 U.S. National Championships and completed the career grand slam in singles. Maureen Connolly was the three-time defending champion, but was unable to defend her title after a horse riding accident.
Pancho Gonzales [1] 
John Bromwich / 
Eric Sturgess