I have a book called "History of Mount Union, Shirleysburg and Shirley Township by Charles Howard Welch, M.E., A.B.,
Printed at The Mount Union Times Office, Mount Union, Pa 1909-1910. It gives Historical Background, Original Settlers, which gives Richard Hall , Sr. as the oldest settler born in Hill Valley March 5, 1818. It also gives pictures of the townspeople. If anyone has someone they are searching in this area, I will be glad to see if they are in the book and provide you with info. Some of the names in the book are:
Richard Hall, John Reck, Joshua Bard, Philip Bolinger, James Barnes, Jacob Lohr, David Long, Issac Crone, Jeremiah Shope, John Roberts, Abraham Grove, William Hudson, robert Wakefield, John S. Harencane, D. P. Enyeart, Gracey Erwin, Henry Morgan, Augustus Harvey, David Crone, John Yound, L. S.l Yetter, John Ziegler, Daniel Myers, John Jacobs, Peter Burket, W. Harry Bard, Jacob A. Miller, Eli Masemore, Joseph B. Gray, Weo. W. Withington, Thos. C. Harris, John W. Riffle, John S. Appleby, Isaac Y. Wilson, J. Harry Myers, A. J. Whittaker, D. C. Kurtz & Sons, Geo. W. Miller, John Douglas, J. Monroe Lutz, Dr. J. C. Fleming, W. H. Lightner, John C. Lotz, Barton Kindred, John Shaver, Elias K. rogers, Casner Miller, Fisher Postlethwaite, Alfred Simons, John Doughterty, george W. Speer, Samuel Miller, John Bare... and many more.