C. Leo Hitchcock (1902-1986), a pioneer collector of Northwest plants, was professor of botany at the University of Washington. Arthur Cronquist (1919-1992), known as one of the most influential botanists of the twentieth century for his advancement of taxonomy, plant systematics, and floristics, spent most of his career at the New York Botanical Garden. David Giblin is collections manager, Ben Legler is informatics specialist and research botanist, and Peter F. Zika is a research botanist, all at the University of Washington Herbarium. Richard Olmstead is curator at the Herbarium and professor of biology. During her career as a botanical illustrator, Jeanne R. Janish (1902-1998) produced thousands of illustrations for over thirty books and other publications. The other illustrators are John H. Rumely, Crystal Shin, and Natsuko Porcino.