With more than 1.5 billion names in over 4,000 databases, Ancestry Library Edition includes records from the United States, UK, and Canadian censuses, beginning in the 18th and 19th century; military records; court, land and probate records; vital and church records; directories; passenger lists and more. These collections are continuously expanding, with new content added every business day.
Records originally published in the "Colonial Records" and "Pennsylvania Archives" print volumes. Available for free on fold3 (link t https://www.fold3.com/browse/1/h9Y02Zdgu). (account required). Many volumes have also been scanned by libraries and are available for free on the HathiTrust Digital Library. (link to Hathi). The PA State Archive provide a descriptive page outlining the contents of the 138 volumes in this set.
The web site of the Church of Jesus Christ of Latter-Day Saints. The Family History Library in Salt Lake City, Utah is the world's largest repository of genealogy records. Materials from the Utah collection can be requested on loan from the closest Family History Center. The Family Search web site has a directory of the Family History Centers.