Herschberger, Richard. "With a Deliberate Attempt to Deceive". SABR - Society for American Baseball Research. Baseball Research Journal, Spring 2017. Retrieved 30 July 2023.
"Give the Batsman a Chance". New York Clipper - cited in the Herschberger article cited above. Vol. XXXI, no. 44, Column 3. New York Clipper. January 19, 1884. Retrieved 30 July 2023.