by Benjamin William Dedrick, Edgar Theodore Wherry, George Bishop Sudworth, Gustav Paul Warber, Jacob Hiram Arnold, Jay Allan Bonsteel, John A. Newlin, John William Roberts, Samuel Augustus Jones, Warren David Brush, Frank Montgomery, Roy Benner Fehr, Thomas Randall Carson Wilson, David James Price

1920

by C. T. Ames, Charles Francis Briscoe, David Carleton Neal, Eugene Beverly Ferris, Harry Bates Brown, Lee Ellis Miles, Charles B. Anders, Horace Hammerton Harned

1918

by David William May, Harrison Garman, J. N. Harper, Melville Amasa Scovell, Robert Graham, R. L. Pontius, Arthur Louis Brueckner

1903

by David Oliver Nourse, E. P. Niles, Ellison Adger Smyth, Frank Sidney Roop, Virginia Agricultural Experiment Station, William Bradford Alwood

1896

by David Grandison Fairchild

1894

by David Sommerville

1915

by Johann David Wyss

1897

by David Page

1920

by West Virginia Geological and Economic Survey, David Bright Reger

1916

by David Hale Newland, Henry Leighton

1910

by Arthur Caswell Parker, David Hale Newland, Henry Platt Cushing, Henry Leighton, Herman Le Roy Fairchild, Rudolf Ruedemann, Charles Henry Smyth

1910

by David Butler Butler

1913