Author
A Citizen
1
A Stockholder
1
A member of the bar, pseud
1
Albertype Co
1
Albrecht, Harry P.
1
Alexander, Edwin P.
1
Alleghany Railroad and Coal Co
1
Alleghany Railroad and Coal Company
1
Allegheny Portage Railroad Company
1
Allegheny Valley Railroad Company
1
Allegheny Valley Railway Company
1
Allen, John E.
2
America's Industrial Heritage Project
2
American Society of Civil Engineers
1
Andrews, Clinton T.
1
Archer, Robert F.
1
Arnold, Andrew Bernard
2
Ashbridge, Thomas
1
Atterbury, William Wallace, 1866-1935
2
Bache, Hartman, 1797-1872
1
Bache, Hartman, 797-1872
1
Baker, Joseph B.
1
Bakewell, Thomas, 1792-1866
1
Baltimore
1
Baltimore (Md.) Citizens
1
Baltimore (Md.) Delegation to the Susquehanna Railroad Convention
1
Baltimore Citizens
1
Baltimore and Ohio Railaroad Co
1
Baltimore and Ohio Railroad Company
4
Baltimore and Susquehanna Railroad Co
1
Baltimore and Susquehanna Railroad Company
1
Bank of the United States (Pennsylvania : 1836-1841)
3
Barclay Coal Company
1
Barclay Railroad Company
1
Barry, Steve
1
Beach, Ephraim
1
Beaver Meadow Railroad and Coal Company
2
Bellas, Hugh, 1780-1863
2
Bernhart, Benjamin L.,
1
Bernhart, Benjamin L., (author)
4
Bernhart, John H. L. Dr.,
1
Bernhart, John L. Dr.,
1
Bethlehem Railroad Company
2
Bezilla, Michael,
1
Bispham, George Tucker, 1838-1906
2
Blackson, Robert M.
1
Blair County Historical Society
1
Board of Trade of Pittsburgh (Pittsburgh, Pa.)
2
Boas and Coplan,
1
Borda, Eugene
1
more ...