Author
- Weslager, C. A. (Clinton Alfred), 1909-1994 2 results
- Abbott, Charles C. (Charles Conrad), 1843-1919 1 results
- American Swedish Historical Museum (Philadelphia, Pa.) 1 results
- Craig, Peter Stebbins 1 results
- Delaware Valley Regional Information Corporation 1 results
- Siokalo, Zoriana E. 1 results
- Solmssen, Clarissa 1 results
- Trimarco, Vito 1 results
- Trust for Public Land (U.S.) 1 results