Author
Baltimore and Ohio Railroad Company
29
Delaware Railroad Company
9
Fernon, Thomas S. 1818-1896
9
North Pennsylvania Railroad Company
7
Hough, Oliver, 1868-
5
Pennsylvania
5
Pennsylvania Railroad
5
Virginia
5
Maryland
4
Baltimore Citizens
3
Dallas, George Mifflin, 1792-1864
3
Garrett, John W. 1820-1884
3
Garrett, John Work, 1820-1884
3
Hough, John
3
Newcomen Society in North America
3
Philadelphia Record
3
Swann, Thomas, 1805-1883
3
Winans, Ross, 1796-1877
3
Wooddy, William
3
Baltimore (Md.) Citizens
2
Baltimore and Ohio Railroad Co
2
Baltimore and Ohio Railroad Company Passenger Traffic Dept
2
Baltimore and Ohio Railroad Company. Public Relations Department
2
Comly, Franklin A., 1813-1887
2
Conrad, Harry
2
Ellet, Charles, 1810-1862
2
Gay, Edward F.
2
Harrisburg, Portsmouth, Mount Joy, and Lancaster Railroad Company
2
Ingersoll, Charles Jared, 1782-1862
2
Latrobe, Benj. H. 1807-1878
2
Lesley, Joseph
2
Louis Berger Group
2
Marshall, A. J. 1803-1882
2
Mohr, Carolyn Curtis, 1919-
2
New Jersey
2
Newberry Library
2
Philadelphia (Pa.). Councils
2
Philadelphia Chamber of Commerce
2
Raymond, Chas. W. 1842-1913
2
Roberts, W. Milnor
2
Roberts, W. Milnor 1810-1881
2
Sharpless, William P.
2
Squair, Lyall D.
2
Stevens, Margaret Talbott
2
Tyson, Jay
2
United States. Bureau of Prisons
2
Virginia. General Assembly
2
A Stockholder
1
Adams, Charles Francis, 1835-1915
1
Adams, Herbert B. 1850-1901
1
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