Penn Baseball in the 19th Century

History of baseball in Allentown, Pennsylvania - Wikipedia

Five of the Great 19th Century Pitchers You May Have Forgotten

Penn Athletics in the 19th Century

September 3, 1985: Yankees farmhand Troy Evers pitches playoff no-hitter in New York-Penn League – Society for American Baseball Research

Penn Baseball in the 19th Century: Origins

Baseball and the Civil War: Forging America's National Pastime

Penn Athletics in the 19th Century

Eastern League of 19th Century Base Ball Clubs

Penn Baseball in the 19th Century: West Philadelphia

Penn Park field, York, Pa.'s, first known ballpark: Then & now.