|Lancaster Red Roses||22.4|
|York White Roses||22.9|
|Reading Pretzels||Harry Barton, George Cockill and Bill Coughlin|
|Johnstown Johnnies||Bert Conn|
|Altoona Rams||Hank Ramsey|
|Lancaster Red Roses||Marty Hogan|
|York White Roses||Curt Weigand|
|Trenton Tigers||George Heckert|
|Harrisburg Senators||Kip Selbach|
|Wilmington Chicks||Peter Cassiday and Tom Bannon|
Historical performance data for professional leagues (affiliated minor leagues, independent minor leagues, fall/winter leagues, and other international leagues) is provided by and licensed from 24-7 Baseball and Chadwick Baseball Bureau. It incorporates the work of many stalwart baseball researchers, including Cliff Blau, Art Cantu, Frank Hamilton, Reed Howard, Kevin Johnson, Bob McConnell, Jack Morris, and Ray Nemec, as well as members of the Minor Leagues Committee of the Society for American Baseball Research.
Perhaps most importantly, it builds upon the seminal work of Ed Washuta, who magnanimously provided the framework to make the whole thing possible.