Anderson, Oscar E. The Health of a Nation: Harvey W. Wiley and the Fight for Pure Food. Chicago: Univ. of Chicago Press, 1958.
Bailey J.C. Seaman A. Knapp: Schoolmaster of American Agriculture. New York: Columbia Univ. Press, 1945.
Cross, Coy F., Justin Smith Morrill: Father of the Land-Grant Colleges. East Lansing, Michigan State University Press, 1998.
Durand, William F. Robert Henry Thurston; A Biography, The Record of a Life of Achievement as Engineer, Educator, and Author (New York: ASME, 1929).
Gorn, Michael H. The Universal Man: Theodore von Karman's Life in Aeronautics (Washington: Smithsonian Institution Press, 1992).
Hitchcock, Embury A. My Fifty Years in Engineering: The Autobiography of a Human Engineer (Caldwell, Idaho: Caxton Printers, 1939).
Penhallow, D. P. "William Smith Clark: His Place as a Scientist and His Relation to the Development of Scientific Agriculture" Science v27 (1903:172-80).
Roberts, I.P. The Autobiography of a Farm Boy. Ithaca: Cornell Univ. Press, 1916.
Rogers, Benjamin F. "William Gates LeDuc, Commissioner of Agriculture" Minnesota History, v34 (1955: 287-95).
Rossiter, Margaret W., The Emergence of Agricultural Science: Justus Liebig and the Americans, 1840-1880 (New Haven: Yale Univ. Press, 1975).