Author
Pennsylvania
5
Philadelphia Record
4
Schuylkill Navigation Company
4
Philadelphia (Pa.) Watering Committee
3
Philadelphia Watering Committee
3
Schuylkill River Greenway Association
3
Bailey, Lydia R., 1779-1869
2
Delafield, Richard, 1798-1873
2
Engineers Club of Philadelphia
2
Haworth, James
2
Lewis, Joseph S., 1778-1836
2
Pennsylvania General Assembly House of Representatives Select Committee on Freeing the Schuylkill Permanent Bridge
2
Philadelphia (Pa.) Councils
2
Philadelphia (Pa.) Councils Watering Committee
2
Philadelphia Citizens
2
Schuylkill Navigation Co
2
Schuylkill Permanent Bridge Company
2
Schuylkill River Development Council (Philadelphia, Pa.)
2
Trego, Charles B., 1794-1874
2
Webster, George Smedley, 1855-1931
2
A friend to general improvement, pseud
1
Adlum, John, 1759-1836
1
Albertype Co
1
Alexander, William
1
Allen, Jane E.
1
Allen, Roger B.
1
American Association for the Advancement of Science
1
American Society of Civil Engineers
1
American Society of Civil Engineers Philadelphia Section
1
Andrews, J.
1
Baist, G. Wm. 1859-1927
1
Barker, George Frederick, 1835-1910
1
Binney, Horace, 1780-1875
1
Birkinbine, Henry P. N.
1
Blackwall, Christopher I.
1
Boston (Mass.) Water Commissioners
1
Bowen, Eli, b. 1824
1
Boye, Martin H. 1812-1909
1
Bromwell, William
1
Burden
1
Carroll, J.P.
1
Crawford, Andrew Wright, 1873-1929
1
Cresson, Charles M.
1
Cresson, Charles M. 1828-1893
1
Cuyler, Theodore Ledyard, 1822-1909
1
Dallas, George Mifflin, 1792-1864
1
Duane, William J. 1780-1865
1
Duttenhofer, A.
1
Ekenbrine, W.H.
1
Eltonhead, William B.
1
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