13 records – page 1 of 2.
The beginnings of the petroleum industry, sources and bibliography
A checklist of Pennsylvania newspapers
Inventory of the county archives of Pennsylvania: Lehigh County
A partial bibliography of the archaeology of Pennsylvania and adjacent ...
Pennsylvania history and morale
Pennsylvania's first year at war, December 7, 1941-December 7, 1942
Philadelphia naturalization records : an index to records of aliens' ...
Remember William Penn, 1644-1944
Some Pennsylvania leaders
A study of Delaware Indian medicine practice and folk beliefs