Military History: Pennsylvania at Gettysburg. Ceremonies at the dedication of the monuments erected by the commonwealth of Pennsylvania to mark the positions of the Pennsylvania commands engaged in the battle by b Penns John P. (John Page) Nicholson Commission, Shelf: 9. Books and Bound Manuscripts, FP.2016.004. Fairmount Park Historic Resources Archive. https://pprarchives.libraryhost.com/repositories/2/archival_objects/13924 Accessed April 20, 2025.