|Fort Dodge Gypsum Eaters||25.4|
|Burlington River Rats||25.5|
|Boone Coal Miners||21.1|
|Fort Dodge Gypsum Eaters||Frank Boyle|
|Waterloo Microbes||Jim Myers and Charles Cole|
|Keokuk Indians||Thomas Hackett|
|Marshalltown Grays||Robert Warner|
|Burlington River Rats||George Stovall, Bob Black and F. Sullivan|
|Boone Coal Miners||Tommy Reynolds and Walter Holcomb|
|Oskaloosa Quakers||William Tilley|
|Ottumwa Standpatters||Albert Kennedy|
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.