Author
Philadelphia (Pa.). Department of Wharves, Docks and Ferries
3
Committee of Seventy (Philadelphia, Pa.)
2
Delaware River Port Authority
2
U.S Board of Engineers for Rivers and Harbors
2
Beck, Henry Paul
1
Brewington, M. V. 1902-1974
1
Chandler, Charles Lyon, 1883-
1
International Congress of Navigation
1
Leffmann, Henry, 1847-1930
1
Philadelphia (Pa.) Councils Joint Special Committee on the Launching of the Armored Cruiser "Pennsylvania"
1
Philadelphia (Pa.). Office of the City Representative
1
Philadelphia Board of Trade
1
Philadelphia Chamber of Commerce
1
Philadelphia Maritime Museum
1
Philadelphia Port Corporation Port Affairs Division
1
Port of Philadelphia Board of Wardens
1
Ralston, Robert, 1761-1836
1
Reath, Henry T.
1
Richardson, E. P. 1902-1985
1
Ross, Christian K.
1
Schoff, Wilfred H. 1874-1932
1
Taylor, Frank H. 1846-1927
1
U.S Maritime Commission
1
U.S Shipping Board
1
United States. Congress
1