American mycologist (1867-1947).
William Henry "Doc" Long (7 March 1867 – 10 December 1947) was an American mycologist. He obtained his Bachelor degree at Baylor University in Waco, Texas in 1888, and then served as Professor of Natural Sciences at this university until 1892. Long entered graduate studies in 1899 under the supervision of W.L. Bray and W.M. Wheeler in 1899, and obtained a master's degree in 1900. For the following nine years he was Professor of Botany at North Texas State Normal College at Denton. Under the guidance of George F. Atkinson, Long performed field work at Cornell University, which eventually led to