Marjorie Gladman
Marjorie Katherine "Midge" Gladman Van Ryn, was an American amateur tennis player in the early part of the 20th century.
Gladman played collegiate tennis at the University of Southern California. She was ranked in the U.S. Top Ten nine times between 1928 and 1937, with her highest ranking coming in 1937.
She won the doubles title at the 1936 U.S. National Championships partnering Carolin Babcock, and was a doubles finalist in 1937 and 1940.
In 1928, she won the singles title at the historic tournament in Cincinnati, the Canadian National singles title, and the Western singles championship. She paired with Zinke to win the 1928 Western doubles title as well. In 1929, she won the singles and doubles titles at both the women's intercollegiate tournament in Boston and the Middle States singles title in Philadelphia. She also won the Delaware State singles title, and was a finalist in doubles and mixed doubles there as well.
In 1931 and 1936 she participated in the Wimbledon Championships and reached a fourth round in the singles, a quarterfinal in the women's doubles and a fourth round in the mixed doubles. In March 1936 she won the U.S. Indoor Championships defeating Norma Taubele in straight sets. At the same tournament she won the doubles title in 1932, 1949, 1950, 1951 and 1960.
On 22 October 1930, she married John Van Ryn, who was inducted into the International Tennis Hall of Fame in 1963. The marriage did not last and on March 1, 1947 she married Richard Buck.
In 1954 she was presented with the USTA Service Bowl Award and in 1991 she was inducted into the USTA New England Hall of Fame.
Grand Slam finals
Doubles (1 title, 3 runner-ups)
| Result | Year | Championship | Surface | Partner | Opponents | Score |
| Loss | 1933 | Australian Championships | Grass |  Joan Hartigan | Margaret Molesworth Emily Hood Westacott | 3–6, 2–6 |
| Win | 1936 | U. S. National Championships | Grass |  Carolin Babcock | Helen Jacobs Sarah Palfrey Fabyan | 9–7, 2–6, 6–4 |
| Loss | 1937 | U. S. National Championships | Grass | Carolin Babcock | Sarah Palfrey Fabyan Alice Marble | 5–7, 4–6 |
| Loss | 1940 | U. S. National Championships | Grass | Dorothy Bundy | Sarah Palfrey Alice Marble | 4–6, 3–6 |
Mixed doubles (1 runner-up)
| Result | Year | Championship | Surface | Partner | Opponents | Score |
| Loss | 1933 | Australian Championships | Grass | Ellsworth Vines | Marjorie Cox Crawford Jack Crawford | 6–3, 5–7, 11–13 |