Author
- Philadelphia Commission on AIDS 4 results
- United States. Bureau of Chemistry and Soils 4 results
- Leonard Davis Institute of Health Economics 3 results
- Pennsylvania State College. School of Agriculture 3 results
- Atkinson, C. H. (Cuthbert Harry), 1906- 2 results
- Morse, H. N. (Hermann Nelson), 1887-1977 2 results
- Roach, Hannah Benner 2 results
- Scull, James 2 results
- Simmons, C. S. (Charles Shaffer), 1900- 2 results
- Unknown author 2 results
- Administrative Management Society Philadelphia Chapter 1 results
- Armstrong, John 1 results
- Armstrong, Kay 1 results
- Ashmead, Jacob 1 results
- Bennett, Hugh H. (Hugh Hammond), 1881-1960 1 results
- Brooke, Robert 1770-1821 1 results
- Brown, Lindsey Andrew, 1906- 1 results
- Browne, Peter A. (Peter Arrell), 1782-1860 1 results
- Bryant, Jay Clarke, 1905- 1 results
- Burke, R. T. Avon 1 results
- Burke, R. T. Avon (Richard Thomas Avon), 1878- 1 results
- Burke, R. T. Avon, 1878- 1 results
- Bush Hill estate 1 results
- CLIO Group, Inc 1 results
- Citizens' Committee on the Finances of Pennsylvania 1 results
- Clemson, Thomas Green, 1807-1888 1 results
- Codorus Furnace and Forge (Hellam, Pa.) 1 results
- Colley, Fred R. 1 results
- Collins, Zaccheus 1764-1831 1 results
- De Krafft, Charles 1 results
- Dorsey, Greenberry d. 1807 1 results
- Drum, Augustus 1815-1858 1 results
- Dunlap, John 1747-1812 1 results
- Ellerman, Donald 1 results
- Fackenthal, B. F. (Benjamin Franklin) 1851-1941 1 results
- Finley, R. R. (Robert Rankin), 1906- 1 results
- Franklin Institute (Philadelphia, Pa.). Science Museum 1 results
- Frey, George 1 results
- Galbraith, Bartram 1 results
- Geological Society of Pennsylvania 1 results
- Germantown and Perkiomen Turnpike Company 1 results
- Gibbons family 1 results
- Gutiérrez, Manuel J. 1 results
- Hice, Richard Robert, 1865- 1 results
- Higbee, Howard William, 1899- 1 results
- Hispanic Federation for Social and Economic Development 1 results
- Historical Society of Pennsylvania 1 results
- Hopkins, Albert Cole 1837-1911 1 results
- Hosterman, James L., 1909- 1 results
- James Madison Pamphlet Collection (Library of Congress) 1 results more…