Author
- Adams, Harold Kampf, 1913-1992 1 results
- Adams, John H. (John Howard), 1947- 1 results
- Albertype Co 1 results
- Anderson, Kathleen Kerns, 1920- 1 results
- Anderson, Robert J. (Robert John), 1920- 1 results
- Aughenbaugh, Gloria L. 3 results
- Bakewell, Thomas, 1792-1866 1 results
- Baltimore 1 results
- Baltimore and Ohio Railroad Company 1 results
- Bates, Paul Edward 1 results
- Beach, Richard 1 results
- Beatty, Charles, 1715?-1772 3 results
- Bell, Raymond Martin, 1907- 1 results
- Berry Farm Oil Company 1 results
- Bigham, T.J 1 results
- Bliss, Eugene Frederick, 1836-1918 1 results
- Board of Trade of Pittsburgh (Pittsburgh, Pa.) 1 results
- Bonnecamps, Joseph-Pierre, 1707-1790 1 results
- Breed, William P. (William Pratt), 1816-1889 1 results
- Burnett, John, b. 1778 1 results
- Butterfield, Consul Willshire, 1824-1899 2 results
- Céloron de Blainville, Pierre-Joseph, 1693-1759 1 results
- Church of Jesus Christ of Latter-day Saints 1 results
- Cochran, Richard M., 1951- 1 results
- Craig, Neville B., 1787-1863 1 results
- Craig, Neville, 1787-1863 1 results
- Croatian Fraternal Union of America 1 results
- Croghan, George, 1720?-1782 1 results
- Cuming, Fortescue, 1762-1828 1 results
- Darlington Memorial Library 1 results
- Dickinson, John, 1732-1808 1 results
- Downes, Randolph C. (Randolph Chandler), 1901- 1 results
- Dumas, Charles Guillaume Frédéric, 1721-1796 1 results
- Dunbar, Lyle 1 results
- Dwight, Margaret Van Horn, 1790-1834 1 results
- Eaton, S. J. M. (Samuel John Mills), 1820-1889 1 results
- Eavenson, Howard N. (Howard Nicholas), 1873-1953 1 results
- Elise Willing Balch Collection 1 results
- Elliott, David, 1787-1874 1 results
- Erickson, Yvonne Spahr, 1924- 1 results
- Evans, Lewis, 1700?-1756 1 results
- Farrand, Max, 1869-1945 1 results
- First Catholic Slovak Union of America 1 results
- Flood Commission of Pittsburgh 2 results
- Gallup, Andrew 1 results
- Gibbons, Charles E., 1814-1885 1 results
- Gill, Edward H. 1 results
- Gipson, Lawrence Henry, 1880-1971, 1 results
- Greenwood, Jim 1 results
- Griswold, W. T., 1859-1931 1 results more…