Author
Pennsylvania Railroad
32
Baltimore and Ohio Railroad Company
18
Association of American Railroads
9
Association of American Railroads. Railroad Committee for the Study of Transportation
4
Atterbury, William Wallace, 1866-1935
4
Bureau of Railway Economics (Washington, D.C.)
4
Latrobe, Benj. H. 1807-1878
4
National Railway Historical Society
4
Association of American Railroads. Bureau of Railway Economics
3
Baltimore and Eastern Railroad Company
3
Carey, Mathew, 1760-1839
3
Knight, J. 1787-1858
3
Lee, Ivy L. 1877-1934
3
Monroe, Joseph Elmer, 1894-
3
Philadelphia Board of Trade
3
Adams, Charles Francis, 1835-1915
2
Baltimore Citizens
2
Baltimore and Ohio Railroad Company. Relief Department
2
Carter, Charles Frederick, 1863-1939
2
Center for Canal History and Technology (Easton, Pa.)
2
Crocker, Alvah, 1801-1874
2
Edson, William D.
2
Fraley, F. 1804-1901
2
Gibb, Hugh R.
2
Gowen, Franklin Benjamin, 1836-1889
2
Hamilton
2
Historical Records Survey (U.S.) New Jersey
2
Jones, Harry Edwin, 1885-
2
Lauck, W. Jett 1879-1949
2
Lehigh Valley Coal Company
2
Lehigh Valley Railroad Company
2
Lehigh and New England Railroad Company
2
Little, Stephen
2
Long Island Rail Road
2
McLane, Louis, 1786-1857
2
Middleton, Philip Harvey, 1882-
2
Middleton, William D., 1928-2011
2
National Board of Trade
2
New Jersey Historical Records Survey Project
2
New Jersey State Planning Board
2
Norfolk and Western Railway Company
2
Parmelee, Julius Hall, 1883-
2
Philadelphia & Reading Railroad Co
2
Railway Accounting Officers Association
2
Rea, Samuel, 1855-1929
2
Reading Company
2
Redfield, W. C. 1789-1857
2
Russell, Charles Edward, 1860-1941
2
Taber, Thomas T., III
2
Tanner, Henry Schenck, 1786-1858
2
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