Author
Abbett, Leon, 1836-1894
1
Albertype Co
6
Alexander, William
1
Allegheny County (Pa.)
1
Allen, Richard Sanders, 1917-2008
3
American Society of Civil Engineers
1
Andariese, Walter S.
1
Andersen & Resner (Firm)
1
Andrews, J.
1
Baldwin, William C.,
1
Barker, James
1
Barralet, John James
1
Bayley, Frank W. 1863-1932
1
Beals, Betty
1
Beals, Fred
1
Bell, D. Sargent, 1876-194-
1
Bennett, Lola
1
Bock, Eugene R.
1
Bridge, Carl J.
1
Bridge, James Howard, 1858-1939
1
Bridge, Norman, 1844-
1
Bridge, William Dawson, 1840-
2
Bridge, William Frederick, 1821-1892
1
BridgeSet Sound
1
Bridges, Harry Renton, 1901-1990
1
Bridges, Harry, 1901-
1
Browning, Abraham
1
Burden
2
Burns, William J., 1861-1932
1
Bushkill Bridge Company
1
Caroulis, Jon
1
Carswell, Charles
1
Caruthers, Elizabeth Gipe
2
Catawissa Railroad Company
2
Chester County Historical Society (West Chester, Pa.)
1
Christianson, Justine
1
City History Society of Philadelphia
1
Clark, Reeves & Company
1
Clarke, Jonas
1
Clarke, Reeves & Co
1
Cloud, John W.
2
Colonial Williamsburg Foundation
1
Communist Party of the United States of America
1
Conwill, Joseph D., 1954-
1
Cooch, Edward W.
1
Cooper, Theodore, 1839-1919
1
Copley Gallery (Boston, Mass.)
1
Creecy, Richard Benbury, 1813-1908
1
Cuyler, Theodore L. 1822-1909
1
Dallas, George Mifflin, 1792-1864
1
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