Barbara Ferrell
Walter Tewksbury of the United States at the 1900 Games in Paris ... he won gold in 200 meter dash and 400 meter hurdles, silver in 60 meter dash and 100 meter dash, and bronze in 200 meter hurdles.
Silver medalists in the 100 meter dash at the 1960 Games in Rome: Men: David Sime - United States Women: Dorothy Hyman - Great Britain
No, they do not run a 50 meter dash at either the USATF Junior Olympics or the AAU Junior Olympics.
2 ... a gold in women's 4x100 meter relay and a silver in women's 100 meter dash.
Ato Bolden. Bolden won silver in men's 100 meter dash in 2000 and bronze in men's 100 meter dash in 1996. He also won bronze in men's 200 meter dash in 1996 and 2000.
Cathy Freeman participated in three Olympics (1992 in Barcelona, 1996 in Atlanta, 2000 in Sydney). She won two medals, a silver medal in the 400 meter dash in 1996 and a gold medal in the 400 meter dash in 2000.
The 200 meter dash made its debut in the Olympics at the 1900 Games in Paris.
Don Quarrie of Jamaica.
100 meter dash
No ... Evelyn Ashford's last Olympics was the 1992 Summer Games in Barcelona. She competed in four Summer Olympics (1976, 1984, 1988, 1992) and won 4 gold medals (1 in 100 meter dash and 3 in 4x100 meter relay) and 1 silver medal (100 meter dash).
That was Frankie Fredericks of Namibia who also won silver in the men's 100 meter dash at the 1992 Summer Games in Barcelona. Fredericks also won silver in the men's 100 meter and 200 meter dash at the 1996 Summer Games in Atlanta and is the only Namibian athlete, through the 2008 Games in Beijing, to win an Olympic medal.
Through the 2008 Games in Beijing, that was Raelene Boyle who won silver in both the 100 meter dash and 200 meter dash at the 1972 Games in Munich.