Mississippi-Ohio Valley League
Teams from Belleville, Illinois, Centralia, Illinois, Marion, Illinois, Mattoon, Illinois, Mount Vernon, Illinois, and West Frankfort, Illinois moved from the Illinois State League and joined the league. Mount Vernon moved to Paducah, Kentucky.
|West Frankfort Cardinals||St. Louis Cardinals||71-49|
|Mount Vernon Kings||53-67|
Mattoon beat Centralia 3 games to none in the playoffs. Paducah beat West Frankfort by 3 games to none as well. Paducah beat Mattoon 4 games to 3 for the championship.
|West Frankfort Cardinals||St. Louis Cardinals||72-47|
|Mount Vernon Kings||37-77|
Centralia beat Mattoon 3 games to 1, and Paducah beat West Frankfort 3 games to none, in the first round of the playoffs. The championship series was cancelled due to bad weather.
Springfield and West Frankfort folded. Paducah left to join the Kentucky-Illinois-Tennessee League. Danville, Illinois joined the league after having left the Illinois-Indiana-Iowa League. The best records for the first and second halves of the season were also recorded.
|Paris Lakers||84-36 (1st half winner) (2nd half winner)|
|Mount Vernon Kings||60-59|
|Danville Dans||Boston Braves||87-40 (1st half winner)|
|Paris Lakers||85-42 (2nd half winner)|
|Mount Vernon Kings||55-67|
|Vincennes Velvets/Canton Citizens||54-70|
|Mattoon Indians||Cincinnati Reds||35-89|
Hannibal beat Danville 3 games to 1, and Decatur beat Paris 3 games to 2 in the first round of the playoffs. Decatur won the championship over Hannibal 3 games to 1.
Canton and Centralia folded.
|Mattoon Phillies||Philadelphia Phillies||64-56|
|Hannibal Cannibals||St. Louis Cardinals||55-62|
|Mount Vernon Kings||55-64|
|Danville Dans||Chicago White Sox||48-71|
Decatur beat Hannibal 3 games to none, and Paris beat Mattoon 3 games to none, in the first round of the playoffs. Decatur won the championship over Paris 3 games to 2.
|Danville Dans||New York Giants||66-59|
|Dubuque Packers||Chicago White Sox||62-61|
|Mattoon Phillies||Philadelphia Phillies||62-64|
|Hannibal Cannibals||St. Louis Cardinals||58-68|
|Mount Vernon Kings||57-69|
Clinton beat Decatur 2 games to none, and Danville beat Dubuque 2 games to 1, in the first round of the playoffs. Danville won the championship over Clinton 3 games to none.
|Dubuque Packers||Chicago White Sox||74-52|
|Mattoon Phillies||Philadelphia Phillies||68-57|
|Clinton Pirates||Pittsburgh Pirates||68-57|
|Lafayette Chiefs||Cleveland Indians||63-63|
|Decatur Commodores||St. Louis Cardinals||62-64|
|Paris Lakers||Brooklyn Dodgers||62-64|
Dubuque beat Clinton 2 games to none, and Mattoon beat Kokomo 2 games to none, in the first round of the playoffs. Dubuque won the championship over Mattoon 3 games to none. The team from Hannibal folded. All other teams from the league became charter members of the new, Class D Midwest League, now a Low Class A circuit, and the Mississippi-Ohio Valley League folded.
- Sumner, Benjamin Barrett. Minor League Baseball Standings:All North American Leagues, Through 1999. Jefferson, N.C.:McFarland. ISBN 0-7864-0781-6