Author
- Jackson, Ronald Vern 222 results
- Sanborn Map Company 153 results
- United States Census Office 141 results
- United States. Bureau of the Census 112 results
- Teeples, Gary Ronald, 111 results
- Potter, Dorothy Williams 79 results
- Pennsylvania Historical and Museum Commission 62 results
- United States. Federal Highway Administration 49 results
- Delaware. Division of Highways. Location and Environmental Studies Office 47 results
- Genealogical Society of Utah 47 results
- United States. National Park Service 47 results
- Frederic R. Kirkland Collection 43 results
- United States Census Office 7th census, 1850 42 results
- Rand McNally and Company 41 results
- Delaware. Bureau of Archaeology and Historic Preservation 40 results
- Historical Society of Pennsylvania 40 results
- Philadelphia City Planning Commission 34 results
- Karl Baedeker (Firm) 33 results
- Mitchell, S. Augustus (Samuel Augustus), 1792-1868 32 results
- Ruff, Paul Miller, 1918- 32 results
- Elliott, Bruce S. 30 results
- Pennsylvania Railroad 29 results
- Teeples, Gary Ronald 29 results
- Ontario Genealogical Society 28 results
- Washington, George, 1732-1799 28 results
- Carey, Mathew, 1760-1839 27 results
- Maier, Phyllis C. 27 results
- Pennsylvania. Bureau of Topographic and Geologic Survey 27 results
- Philadelphia Record 27 results
- Pennsylvania 26 results
- Schaefermeyer, David, 25 results
- United States Census Office 5th census, 1830 25 results
- ADC (Firm) 24 results
- Custer, Jay F., 1955- 24 results
- Pennell, Joseph, 1857-1926 24 results
- Page, William, 1861-1934 23 results
- United States Census Office 4th census, 1820 23 results
- Institute of Early American History and Culture (Williamsburg, Va.) 22 results
- Maryland State Archives 22 results
- Melish, John, 1771-1822 22 results
- Smith, J. L. 22 results
- Tanner, Henry Schenck, 1786-1858 20 results
- United States. Work Projects Administration. Division of Professional and Service Projects 20 results
- Library of Congress 19 results
- Moore, Clarence B. (Clarence Bloomfield), 1852-1936 19 results
- Morse, Jedidiah, 1761-1826 19 results
- Pre-1801 Imprint Collection (Library of Congress) 19 results
- United States Census Office 6th census, 1840 19 results
- Egle, William Henry, 1830-1901 18 results
- Kent, Donald H. 18 results more…