Author
Scheffer & Beck
3
Coleman, W. W. 1835-1888
2
Egelmann, Charles Frederick
2
Heifer International
2
Hitchcock, I. Irvine 1793-1868
2
Maryland State Agricultural Society
2
Roberts, Edward P.
2
Sands, Samuel
2
Sands, William E.
2
Skinner, John S. 1788-1851
2
Smith, Gideon B.
2
Worthington, N. B.
2
Agricultural History Society
1
American Society of Naturalists
1
American annual cyclopaedia and register of important events
1
Biglow, William, 1773-1844
1
Cale, G. H.
1
California Rural Legal Assistance Foundation
1
Carey, Mathew, 1760-1839
1
Citizens for Farm Labor (Berkeley, Calif.)
1
Clarke, William Fletcher
1
Collom, William
1
Dadant, C. P. 1851-1938
1
Dadant, James Camille
1
Dadant, M. G.
1
Darlington, J. Lacy
1
E.I. du Pont de Nemours & Company
1
Essex Institute
1
Federation of Jewish Farmers of America
1
Haldeman
1
Hampton Institute
1
Hampton Normal and Agricultural Institute
1
Hampton Normal and Agricultural Institute (Va.)
1
Hanson, H. C.
1
Harris, Thaddeus Mason, 1786-1842
1
Institute of Pennsylvania Rural Life and Culture
1
Mease, James, M.D.
1
National Farm School (Doylestown, Pa.)
1
Newman, Thomas Gabriel, 1833-1903
1
Optic, Obadiah, pseud
1
Pellett, Frank C. 1879-1951
1
Penn School (Saint Helena Island, S.C.)
1
Pennsylvania Association for Sustainable Agriculture
1
Pennsylvania Farm Museum at Landis Valley
1
Pennsylvania State Horticultural Association
1
Pennsylvania. Department of Agriculture
1
Red Lake County Farm Bureau Association
1
Saunders, William
1
Scott, R. Robinson
1
Society for the Promotion of Useful Arts, Albany, New York
1
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