Author
Mitchell, D.
2
Baltimore and Ohio Railroad Co
1
Garrett, John Work, 1820-1884
1
Grant, H. Roger, 1943-
1
Inter-Regional Advisory Subcommittee on NECIP
1
Knight, J. 1787-1858
1
Latrobe, Benj. H. 1807-1878
1
North Pennsylvania Railroad Company
1
Northeast Corridor Improvement Project (U.S.)
1
Philadelphia Citizens
1
Pittsburgh and Steubenville Rail Road Company
1
Schuchman, William, b. 1823 or 4
1
United States Commission on Civil Rights
1