Hayden, Ada, 1884-1950.

Botanist. Ada Hayden earned a B.S. (1908), M.S. (1911); and Ph. D (1918) at Iowa State College (later University). She was also a member of the faculty at ISU, holding the positions of Instructor (1910-1918) and Assistant Professor of Botany (1919-1950); and was named Curator of the Herbarium in 1947.

Hayden excelled in photographing and illustrating plants and added more than 40,000 specimans to the Herbarium. Hayden was an ardent conservationist who worked to have Iowa's natural prairies set aside as preserves.

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