Author
Philadelphia Society for Promoting Agriculture
53
Weiss, Harry B. 1883-1972
21
Carey, Mathew, 1760-1839
16
Philadelphia Record
15
Pennsylvania State Agricultural Society
11
Peters, Richard, 1743-1828
11
Washington, George, 1732-1799
11
Weiss, Grace M.
11
Centennial Exhibition Philadelphia, Pa.)
10
Frear, William, 1860-1922
9
Pennsylvania State College
9
Pennsylvania State College. School of Agriculture
8
United States. Department of Agriculture
8
Fisher, Sidney George, 1809-1871
7
Sharp, Joshua
7
Tennessee. Bureau of Agriculture, Statistics, and Mines
7
U.S Centennial Commission
7
Bordley, J. B. 1727-1804
6
Elliott, Bruce S.
6
Ontario Genealogical Society
6
Pennsylvania Agricultural Society
6
Pennsylvania. Department of Agriculture
6
American Imprint Collection (Library of Congress)
5
Bowen, Eli, 1824-
5
Butz, George C., 1863-
5
Darlington, William, 1782-1863
5
Killebrew, J. B. 1831-1906
5
Sim, Robert J.
5
United States. Bureau of Chemistry and Soils
5
United States. Bureau of the Census
5
Armstrong, S. C. 1839-1893
4
Association of Research Libraries, Washington, Dc. Office ofManagement Services
4
David Landreth & Son (Philadelphia)
4
Historical Society of Pennsylvania
4
Hogeland, Alexander
4
Imlay, Gilbert, 1754?-1828?
4
Lancaster County Tobacco Growers' Society
4
Logan, George, 1753-1821
4
Mutual Fire and Live Stock Insurance Company of Philadelphia
4
New York State Agricultural Society
4
Skinner, John S. 1788-1851
4
Smith, Andrew F., 1946-
4
United States. Bureau of Agricultural Economics
4
United States. Weather Bureau
4
Woodward, Carl Raymond, 1890-
4
Agricultural History Society
3
American Almanac Collection (Library of Congress)
3
Archives of Czechs and Slovaks Abroad
3
Blight, George
3
Bliss, George S.
3
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