| Armstrong County Genealogical Society: Includes details of the Mildred Lankerd-Thomas Genealogical Library, genealogical club, cemetery commission, message board, chat room, and guest book. |
| Beaver County Genealogical Society: Maintains a research library, provides free classes on researching family history, and publishes a newsletter. Online document archive includes local maps, cemetery listings, city directories, Civil War draft lists, death notices, newspaper articles, and tax lists. |
| Blair County Genealogical Society: Based in Hollidaysburg. Includes newsletter, publications, meeting details and membership form. |
| Cambria County Historical Society: Based in Ebensburg. Includes newsletter, picture gallery, publications and membership details. |
| Capital Area Genealogical Society: The genealogical society for the Dauphin County/Harrisburg area. |
| Centre County Genealogical Society: Serve its members and the public via informative meetings, a quarterly newsletter, the maintenance of a file of member surname interests, and the publication of various types of county records. |
| Chester County Historical Society: Features a history center in West Chester that features exhibits, letters, diaries and documents found in library and archives. |
| Clarion County Historical Society: Based in Clarion. Includes an event calendar, a membership application, available resources and information on the Sutton-Ditz House Museum. |
| Clinton County Historical Society: Based in Lock Haven. Provides a history of the society, event and membership details, and a virtual tour of the Heisey Museum. |
| Conneaut Valley Area Historical Society: Historical Society for Beaver, Conneaut, Spring, Summerhill townships as well as Conneautville and Springboro in Crawford County. |
| Cumberland County Historical Society: Two Mile House and Hamilton Library and Museum. Directions, history of the society, events, photos, genealogical and historical research service, school programs. |
| Frackville Area Historical Society: Provides a history of Frackville and its schools, as well as a photo archive. |
| Genealogical Research Society of Northeastern Pennsylvania: Based in Olyphant. Includes meeting information, membership dues, mission statement and related links. |
| Genealogical Society of Pennsylvania: Philadelphia-based organization that offers resources and gatherings to assist users with genealogy. |
| Germantown Historical Society: The Germantown Historical Society works to preserve and perpetuate the history of, and historical items from, the Germantown section and former Germantown Township of Philadelphia, Pennsylvania. |
| Historical and Genealogical Society of Indiana County: Based in Indiana. Includes an overview of the society, newsletter and membership details. |
| Historical Society of Berks County: Based in Reading. Provides an overview of the society, photo galleries, articles, mailing list and information on the Hendel Mansion. |
| Historical Society of Western Pennsylvania: Searchable database of the society's archives. |
| Huntingdon County Historical Society: Based in Huntingdon. Includes publications, newsletter, obituary search and an overview and history of the society. |
| Juniata County Historical Society: Based in Mifflintown. Provides an overview, membership information, publication list, news and event details. |
| Kittochtinny Historical Society: Provides a brief history of Franklin County, profile of the society and information on membership dues. |
| Lancaster Mennonite Historical Society: Provides an overview of the society, exhibit details and online access to their archives. |
| Lebanon County Historical Society: Based in Lebanon. Includes news, exhibit details and information on the Stoy Museum. |
| Lehigh County Historical Society: Based in Allentown. Provides an overview of the society, membership details, a history of the county, events calendar and information on their museum. |
| Lycoming County Genealogical Society: Based in Williamsport. Includes genealogical resources and related links. |
| Lycoming County Historical Society: Based in Williamsport. Presents an overview of the society, news, exhibit details, picture gallery and information about their museum. |
| Manheim Historical Society: Includes historical information on the town with details of society properties and events. |
| Mayflower Society of Pennsylvania: Society, historical, factual, and genealogical information about the Pilgrim Fathers. |
| Mercer County Historical Society: Based in Mercer. Includes event information, mission statement, relevant forms and related links. |
| Northampton County Historical and Genealogical Society: Based in Easton. Provides a society profile, event calendar, membership details and exhibit information. |
| Pioneer Historical Society of Bedford County: Located in Bedford. Provides an overview of the society, news, publication list and membership information. |
| Somerset Historical and Genealogical Society: Archive of historical and geological resources pertaining to the area. |
| South Central Pennsylvania Genealogical Society: Covers York and Adams Counties. Includes an overview of the society, newsletter, information on its structure and event details. |
| Susquehanna County Historical Society: Genealogical research center and museum. Holdings, township information, One Hundred Years Ago columns, journal table of contents, hours & directions. |
| The Evangelical and Reformed Historical Society: Historical Society of the Reformed Church in the United States, the Evangelical Synod of North America, the Evangelical and Reformed Church and the United Church of Christ. The Society is housed on the second floor of the Philip Schaff Library at Lancaster Theological Seminary, Lancaster, Pennsylvania |
| The Historical Society of Pennsylvania: Among the oldest historical societies in the United States, HSP is one of the premier repositories for books, manuscripts, graphic materials, and family history resources. |
| Tulpehocken Settlement Historical Society: Based in Womelsdorf. Provides an overview of the society and contact details. |
| Union County Historical Society: Based in Lewisburg. Includes a history of the society and county, list of names that the society has genealogical information for and a list of former place names. |
| Venango Historical Society: Collect historical information and items. Includes information on the collection, publications, hours and location. |
| Western Pennsylvania Genealogical Society: Based in Pittsburgh. Includes an overview of the society, calendar, publications and research information. |
| York County Heritage Trust: The museums, historic sites, collections, and archives of the York County Heritage Trust offer a window into the past that provides a view into the future. |
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