Warrington, Bob. "John Shibe – A Biographic Sketch". Archived from the original on May 8, 2006. Retrieved February 26, 2016.. Philadelphia Athletics Historical Society. Retrieved January 22, 2009.
Warrington, Bob. "John Shibe – A Biographic Sketch". Archived from the original on May 8, 2006. Retrieved February 26, 2016.. Philadelphia Athletics Historical Society. Retrieved January 22, 2009.