Author
Baltimore and Ohio Railroad Company
3
Allegheny Portage Railroad Company
2
Lehigh and Luzerne Railroad Company
2
Lewisburg, Centre and Spruce Creek Railroad
2
Pennsylvania. Board of Canal Commissioners
2
Robinson, Moncure, 1802-1891
2
Warford, A. B.
2
Atlas Portland Cement Co. (New York)
1
Baltimore and Ohio Railroad Company. Board of Engineers
1
Bitting, R. & L. (Firm),
1
Brindle, William
1
Centennial Exhibition
1
Cunningham, John T.
1
Faries, Robert
1
Fernon, Thomas S. 1818-1896
1
Funk, Adolf Christiam Wilhelm, 1799-
1
Gamble, M. A.
1
Heisey, Martin Luther, 1881-1964
1
Jervis, John B. 1795-1885
1
Knight, J. 1787-1858
1
Latrobe, Benj. H. 1807-1878
1
Little Schuylkill and Susquehanna Rail Road Company
1
New Jersey Tercentenary Commission
1
North Branch Canal Company
1
North Pennsylvania Railroad Company
1
Pennsylvania. Superintendent of the North Branch Canal
1
Pennsylvania. Supreme Court
1
Philadelphia & Reading Railroad Co
1
Philadelphia and Camden Bridge and Terminal Company
1
Philadelphia and Trenton Railroad Company
1
Philadelphia, Wilmington, and Baltimore Rail Road Company,
1
Richards, Joseph T. (Joseph Thomas) 1845-1933
1
Roberts, Samuel W. 1811-1882
1
Roberts, Solomon White, 1811-1882
1
Robinson, Wirt
1
Schweizerische Nordostbahn-Gesellschaft
1
Toogood, Anna Coxe
1