(1797–1849), US educator. She founded Mount Holyoke Female Seminary (later Mount Holyoke College) in South Hadley, Massachusetts, in 1837 and served as its first president 1837–49.
Definition of Lyon, Mary Mason in US English:
Lyon, Mary Mason
proper nounˈlīən
(1797–1849), US educator. She founded Mount Holyoke Female Seminary (later Mount Holyoke College) in South Hadley, Massachusetts, in 1837 and served as its first president 1837–49.