Day, Mary Anna, 1852-1924

Mary Anna Day (1852–1924) was an American botanist and librarian at the Gray Herbarium of Harvard University from 1893 to 1924. She edited and compiled the Card Index of New Genera, Species, and Varieties of American Plants, a quarterly publication that was considered "indispensable" to botanists. By 1923, the publication contained about 170,000 cards. Her publications also include a "List of local floras of New England" and "Herbariums of New England" for the New England Botanical Club. She died January 27, 1924 in Cambridge, Massachusetts, at the age of 72.

Mary Anna Day; American botanist, librarian and teacher; born in Nelson, New Hampshire in 1852; taught in public schools in Massachusetts, 1871-1878; Librarian at the Gray Herbarium starting in 1893.