Author
Perry Historians (Group)
2
Western Pennsylvania Genealogical Society
2
Berks County Genealogical Society
1
Blair County Genealogical Society
1
Bucks County Genealogical Society
1
Northampton County Historical and Genealogical Society
1
South Central Pennsylvania Genealogical Society (York, Pa
1
Southwest Pennsylvania Genealogical Services
1
Wyoming County Historical Society (Pa.)
1