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Helen Almira Shafer (born Sept. 23, 1839, Newark, N.J., U.S.—died Jan. 20, 1894, Wellesley, Mass.) was an American educator, noted for the improvements she made in the curriculum of Wellesley College both as mathematics chair and as school president. Shafer graduated in 1863 from Oberlin (Ohio) College. After two years of teaching in New Jersey she joined the faculty of St. Louis (Missouri) High School, where her work as a teacher of mathematics attracted the...