HARLEY HARRIS BARTLETT, A.B. Acting Assistant Professor of Botany, 1915-1917; Assistant Professor of Botany, 1917-1919; Associate Professor of Botany, 1919-1921; Director of the Botanical Garden, 1919-; Professor of Botany, 1921-.

ELMER WALKER BRANDES, Ph.D., Instructor in Botany 1917-1918, U. S. Bureau of Plant Industry, Washington, D. C.

GEORGE PLUMER BURNS, Ph.D., Instructor in Botany, 1902-1906, Assistant Professor of Botany 1906-1910, Director of the Botanical Garden, 1906-1912, Junior Professor of Botany, 1910-1912, Professor of Botany, University of Vermont and Botanist for the Agricultural Experiment Station, Burlington, Vermont.

BRADLEY MOORE DAVIS, Ph.D. Professor of Botany, 1919-.

JOHN HENRY EHLERS, Ph.D. Instructor in Botany, 1915-1920, Curator of the Phanerogamic Herbarium, 1916-, Assistant Professor of Botany, 1920-.

MAX WILLIAM GARDNER, Ph.D. Instructor in Botany, 1917-1918, Purdue Agricultural Experiment Station. Lafayette, Ind.

FRANK CALEB GATES, Ph.D. Acting Assistant Professor of Botany, 1919, Associate Professor of Botany in Kansas State Agricultural College, Manhattan, Kan.

HENRY ALLEN GLEASON, Ph.D. Assistant Professor of Botany, 1910-1916, Curator of the Phanerogamic Herbarium, 1912-1916, Acting Director of the Biological Station, 1913-1915, Director of the Biological Station, 1916-1917, Director of the Botanical Garden, 1915-1919, Associate Professor of Botany, 1916-1919, Assistant Director of the N.Y. Botanical Garden, New York City.

FELIX GUSTAF GUSTAFSON, Ph.D. Instructor in Botany, 1920-.

ASA GRAY   1837-1842

MARK WALROD HARRINGTON, A.M. LL.D. Assistant Curator of the Museum, 1368-1870, Instructor in Mathematics and Assistant Curator of the Museum, 1870-1872, Instructor in Geology, Zoology, and Botany, 1872-1873, Assistant Professor of Geology, Zoology, and Botany, 1873-1876, Professor of Astronomy and Director of the Observatory, 1879-1892, resigned to accept position of Chief of the U. S. Weather Bureau, Morris Plains, NJ.

ASA GRAY, M.D., Professor of Botany and Zoology, 1838-1842, resigned to accept a position in Harvard College, where he remained until his death, Jan. 30, 1888.

EUGENE WOLDEMAR HILGARD, Ph.D. LL.D. Professor of Geology, Zoology, and Botany, 1873-1874, Professor of Mineralogy, Geology, Zoology, and Botany, 1874-1875, Professor of Agriculture and Agricultural Chemistry in the University of California. Died at Berkeley, Cal., Jan. 8, 1916.

RICHARD MORRIS HOLMAN, Ph.D. Instructor in Botany, 1915-1917, Assistant Professor of Botany in University of California. Berkeley, Cal.

HENRI THEODORE ANTOINE De LENG HUS, Ph.D. Instructor in Botany, 1908-1912, Assistant Professor of Botany, 1912-1915, NY Botanical Garden, New York, NY.

LORENZO NICKERSON JOHNSON, A.M. Instructor in Botany, 1892-1896. Died at Boulder, Colo., Feb. 27, 1897.

CALVIN HENRY KAURFMAN, Ph.D. Instructor in Botany, 1904-1911, Assistant Professor of Botany, 1911-1919, Curator of the Cryptogamic Herbarium, 1912-1921, Associate Professor of Botany, 1919-, Director of the University Herbarium, 1921-.

FANNY ELIZABETH LANGDON, M.S. Instructor in Botany, 1897-1898, Instructor in Zoology, 1898-1899. Died at Ann Arbor, Oct. 21, 1899.

CARL DOWNEY La RUE, Ph.D. Instructor in Botany, 1920-.

FREDERICK CHARLES NEWCOMBE, Ph.D. Instructor in Botany, 1890-1892, Acting Assistant Professor of Botany, 1893-1895, Assistant Professor of: Botany, 1895-1897, Junior Professor of Botany, 1897-1905, Professor of Botany and Director of the Botanical Laboratory, 1905-.

EDWARD JACOB PETRY, M.S. Instructor in Botany, 1918-1920, Rives Junction, Mich.

ADRIAN JOHN PIETERS, Ph.D. Instructor in Botany, 1912-1915, Washington, D.C.

JAMES BARKLEY POLLOCK, Sc.D. Instructor in Botany, 1897-1906, Assistant Professor of Botany, 1906-1911, Junior Professor of Botany, 1911-1914, Associate Professor of Botany, 1914-.

ALFRED HUBERT WILLIAM POVAN, Ph.D. Instructor in Botany, 1916-1917, Northwestern University, Evanston, Ill.

FILIBERT ROTH, B.S. Director of the Botanical Garden, 1913-1915, Professor of Forestry, 1903-.

ABRAM SAGER, A.M. M.D. Professor of Zoology and Botany, 1842-1850, Librarian, l848-1850, Professor of Obstetrics, Diseases of Women and Children, Botany, and Zoology, 1850-1854, Professor of Obstetrics, Physiology, Botany, and Zoology, 1854-1855, Professor of Obstetrics and Physiology, 1855-1860, Professor of Obstetrics and Diseases of Women and Children, 1860-1874, Professor Emeritus of Obstetrics, 1874-1875. Died at Ann Arbor, Mich. Aug. 6, 1877.  (See Librarians)

JULIUS OTTO SCHLOTTERBECK  Pharmacognosy & Botany 1892-1895, 1896-1904, Dean of Pharmacy 1905-

JULIA WARNER SNOW, Ph.D., Instructor in Botany, 1898-1900, Associate Professor of Botany in Smith College. Northampton, Mass.

VOLNEY MORGAN SPALDING, Ph.D. Instructor in Zoology and Botany, 1876-1879, Assistant Professor of Botany, 1879-1881, Acting Professor of Botany, 1881-1886, Professor of Botany, 1886~1904. Died at Loma Linda, Cal. Nov 11, 1918.

CHARLES EDWARD TEMPLE, A.M. Instructor in Botany, 1909-1911, Professor of Plant Pathology and State Pathologist in the University of Maryland, College Park, Md.

HAMILTON GREENWOOD TIMBERLAKE, A.B. M.S. Instructor in Botany, 1898-1899. Died at Madison, Wis., July 19, 1903.

WALTER WESSELHOEFT TUPPER, Sc.D. Instructor in Botany, 1913-1920, Assistant Professor of Botany, 1920-, Senior Inspector of Aeroplanes, Sig. Service, U. S. Army, and American Red Cross, Base Hosp. Camp Devans, Mass., 1918-1919.

ALEXANDER WINCHELL  Physics, Civil Engineering 1853-1855, Geology, Zoology & Botany 1855-1873, Geology & Paleontology 1879-1891