Author
Robinson, Moncure, 1802-1891
3
Campbell, Henry R.
2
Fernon, Thomas S. 1818-1896
2
Lewisburg, Centre and Spruce Creek Railroad
2
North Pennsylvania Railroad Company
2
Trautwine, John C. 1810-1883
2
Warford, A. B.
2
American Society of Civil Engineers
1
Baltimore and Ohio Railaroad Co
1
Bowen, John S.
1
Gay, Edward F.
1
Knight, Johathan, 1787-1858
1
Latrobe, Benj. H. 1807-1878
1
Miller, Edward, 1811-1872
1
Pennsylvania
1
Pennsylvania Railroad
1
Philadelphia and Reading Railroad Co
1
Philipsburg and Juniata Railroad Company
1
Thomson, J. Edgar 1808-1874
1
Tioga Navigation Company
1
Wilson, William Hasell, 1811-1902
1