Author
Delaware River Port Authority
15
Delaware Bridge Joint Commission of the States of Pennsylvania and New Jersey
7
Delaware River Joint Commission of Pennsylvania and New Jersey
4
Modjeski, Ralph, 1861-1940
4
American Cable Company, Inc
2
Burk, Alfred E
2
Carswell, Charles
2
Dallas, George Mifflin, 1792-1864
2
Delaware Bridge Joint Commission of the States of Pennsylvania and New Jersey Board of Engineers
2
Laird, Warren Powers, 1861-
2
Pennsylvania Delaware River Bridge and Tunnel Commission
2
Peters, Richard, 1743-1828
2
Smith, Thomas B., 1869-
2
United States Congress. House. Committee on Interstate and Foreign Commerce
2
United States Congress. House. Committee on Public Works
2
American Cable Company
1
Ammann & Whitney (Firm)
1
Baisden, Cheryl L
1
City History Society of Philadelphia
1
Ebenezer Hazard Pamphlet Collection (Library of Congress)
1
Fenno, John, 1751-1798
1
Isaac Norris Library Fund
1
Joseph Meredith Toner Collection (Library of Congress)
1
Laird, Warren Powers, 1861-1948
1
Marian S. Carson Collection (Library of Congress)
1
Mifflin, Thomas, 1744-1800
1
Modjeski and Masters
1
Nelson, Lee H
1
Pennsylvania
1
Pennsylvania General Assembly
1
Pennsylvania Governor (1790-1799 : Mifflin)
1
Philadelphia Society for Promoting Agriculture
1
Powers, Frederick Perry, -1927
1
Powers, Frederick Perry, d. 1927
1
Robert Venturi and Denise Scott Brown Collection (University of Pennsylvania)
1
Schuylkill Permanent Bridge Co., Philadelphia
1
Schuylkill Permanent Bridge Committee
1
Schuylkill Permanent Bridge Company (Philadelphia) Committee of Accounts
1
Schuylkill permanent bridge company, Philadelphia
1
Smith, Ian Mark
1
Smith, Thomas B., 1869-1949
1
United States Congress. Senate. Committee on Public Works
1