Sallie P. Mead
Photograph of Sallie E. Pero, Mortarboard, Barnard College Yearbook, 1913.

Sallie P. Mead

Sallie P. Mead was an American mathematician and engineer. Mead earned her master’s degree in mathematics from Columbia University in 1914. She was hired by AT&T as a “computer,” or a human calculator, and then transitioned to the engineering team in 1919. Mead was the first woman at AT&T to hold a patent, ultimately earning six patents throughout her career. She was also the first woman to publish a technical report in the Bell System Technical Journal. Mead was instrumental to a breakthrough discovery in waveguide technology that is still used in radar systems today. She was elected to the American Mathematical Society in 1923.

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