Albert Franklin Burgess, Carl William Thompson, Charles Dwight Marsh, E. A. McGregor, Francis Burzley Milliken, Frank Cummings Cook, Fred Hebard Hillman, George Asbury McMurdo, Harold Nelson Humphrey, Herbert Hager Mowry, Howard Archibald Turner, James Edmund Pennybacker, John Chambers McDowell, John Frank Strauss, John Regester Humphrey, Lyster Hoxie Dewey, Otto William Schleussner, Samuel Henry Ayers, Thomas Henry Jones, Thornton Taft Munger, United States. Office of Public Roads, Warren Clemmer Funk, William H. White, William Henry Waggaman, A. B. Clawson, Clarence William Kitchen, Frank Lawrence McDonough, Herbert Sinclair Fairbank, Jason L. Merrill, John T. Bowen, Robert Harris Hutchison, William Bohler Walker, William Horace Kerr, Hadleigh Marsh, W. F. Draper, William Trimble Johnson · 1919
No author available
· 1916