"William Henry Egle was a physician, author and historian who served as the State Librarian of the Commonwealth of Pennsylvania from 1887 to 1889. His body of work documented Pennsylvania's history from its founding through the late 19th century - excerpts of which continued to be reprinted in newspapers following his death in 1901 and are still cited as references by present-day historians and professional genealogists." [from Wikipedia]
[1st ser.] v. 1-12; 2d ser., v. 1-19; 3d. ser., v. 1-30; 4th ser., v. 1-12; 5th se., v. 1-8; 6th ser., v. 1-15; 7th ser., v. 1-5; 8th ser., v. 1-8; 9th ser., v. 1-10.
Notes
A collection of documents supplementing the companion series known as "Colonial Records" which contain the Minutes of the Provincial Council, of the Council of Safety, and of the Supreme Executive Council of Pennsylvania.