Author
Beers, Henry Putney, 1907-
1
Chaussegros de Lery, Joseph Gaspard, 1721-1797
1
Croghan, George, 1720?-1782
1
Frontier Forts and Trails Survey
1
Historical Society of Pennsylvania Cadwalader Collection
1
Kent, Donald H.,
1
Pennsylvania Historical Commission
1
Stevens, Sylvester Kirby, 1904-1974,
1
Wainwright, Nicholas B.
1