Other
- ADC (Firm) 5 results
- Delaware River Bridge and Tunnel Commission of Pennsylvania 1 results
- Dickinson, David, 1777 or 1778-1848, 1 results
- Laird, Warren Powers, 1861-1948 1 results
- Paxton, John Adems 1 results
- Penn General Assembly 1 results
- United States. Army. Corps of Engineers 1 results
- United States. Board of Engineers for Rivers and Harbors 1 results
- United States. Maritime Administration 1 results
- United States. Maritime Commission 1 results