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Mary Tiffany Wales was born in 1874 in Wilmington, Delaware. She attended Pennsylvania State Normal School (now Millersville University of Pennsylvania) in Millersville, Pennsylvania, graduating 1893. She spent five years teaching in Pennsylvania, then moved to Massachusetts where she taught for twelve years. In 1911 Mary moved to Providence to teach at the Rhode Island Commercial School (now Bryant University).
With Mary in poor health, the two women sold the business school in June 1947 and retired together in Warwick, Rhode Island. Mary died of cancer in 1952.
References
^ DeSimone, Russell (2015). "Mary T. Wales". Rhode Island Heritage Hall of Fame. Rhode Island Heritage Hall of Fame. Retrieved 1 January 2018.