Theresa Weld Blanchard (August 21, 1893 in Brookline, Massachusetts – March 12, 1978 in Brookline) was an American figure skater who competed in the disciplines of Ladies and Pairs skating. Her pairs partner was Nathaniel Niles (figure skater).
As a singles skater, she won the gold medal at the U.S. Figure Skating Championships six times and competed three times in the Olympics, capturing a bronze medal in 1920. With Niles, she won the national pairs title nine times and also participated in the Olympics three times.
Blanchard was the long-time volunteer editor of the United States Figure Skating Association's official publication, Skating magazine; first jointly with Niles from the magazine's founding in 1923, and then as sole editor after his death in 1932, up until 1963. The magazine was originally published out of her home. Her long competitive career gave her many contacts throughout the skating world. She also served as the first chair of the association's Professionals Committee from 1937 to 1947.
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- Skating in America, Benjamin T. Wright.