Other
- ADC (Firm) 22 results
- Bromley, George Washington 13 results
- Rand McNally and Company 12 results
- Baist, G. Wm. (George William), 1859-1927 11 results
- Carey, Mathew, 1760-1839 11 results
- G.M. Hopkins & Co 11 results
- Smith, J. L. 11 results
- Alexandria Drafting Company 10 results
- Hopkins, Griffith Morgan, Jr 10 results
- A.H. Mueller & Co 8 results
- Bromley, Walter Scott 8 results
- Pennsylvania. Department of Conservation and Natural Resources 8 results
- Smith, Elvino V., 1870-1932 7 results
- Beers, F. W. (Frederick W.) 6 results
- DeLorme Mapping Company 6 results
- Kiser, Ellis 6 results
- Mueller, A. H. 6 results
- Nichols, Beach 6 results
- Pennsylvania 6 results
- Gardner, David E. 5 results
- Morse, Jedidiah, 1761-1826 5 results
- Phlash (Firm : Philadelphia, Pa.) 5 results
- Tanner, Henry Schenck, 1786-1858 5 results
- Barnes, R. L. 4 results
- Beers, D. G. (Daniel G.) 4 results
- Charles D. Hevenor Company 4 results
- E.P. Noll & Co 4 results
- Franklin Survey Company 4 results
- Geological Survey of Pennsylvania 4 results
- Lathrop, J. M. 4 results
- MacInnes, Sharon Cook 4 results
- Melish, John, 1771-1822 4 results
- Mitchell, S. Augustus (Samuel Augustus), 1792-1868 4 results
- Pennsylvania. Bureau of Topographic and Geologic Survey 4 results
- Philadelphia City Planning Commission 4 results
- Scott, James D. 4 results
- Smedley, Samuel Lightfoot, 1832-1894 4 results
- American Automobile Association 3 results
- American Imprint Collection (Library of Congress) 3 results
- American Society for Colonizing the Free People of Colour of the United States 3 results
- Ashmun, J. (Jehudi), 1794-1828 3 results
- Dunlap, A. R. 3 results
- Everts & Stewart 3 results
- G.W. Bromley & Co 3 results
- George F. Cram Company 3 results
- Gross, Alexander, 1879-1958 3 results
- Hallwag AG 3 results
- Harland, Derek 3 results
- Hartranft, Rufus C. (Rufus Clinton) 3 results
- Hawley, Joseph R. (Joseph Roswell), 1826-1905 3 results more…