Mississippi–Ohio Valley League

In 1947, the Illinois State League was formed. Charter franchises were in the Illinois cities of Belleville, Centralia, Marion, Mattoon, Mount Vernon and West Frankfort.[3] After the 1948 season, the Marion Indians moved out of Illinois to Kentucky. This necessitated a name change for the league.

The league changed names in 1949 to the Mississippi–Ohio Valley League. The league incorporated the new Paducah Chiefs and the five former Illinois State League teams, the Belleville Stags, Centralia Cubs, Mattoon Indians, Mount Vernon Kings, and West Frankfort Cardinals as 1949 charter members.[3][4]

In 1950, a Springfield, Illinois franchise left the Illinois–Indiana–Iowa League, the join the Mississippi–Ohio Valley League. The Mississippi–Ohio Valley League added expansion teams in the Paris Lakers and Vincennes Velvets. The Belleville franchise folded.[5] There was more movement in 1951, as the Springfield Giants and West Frankfort Cardinals both folded and the Paducah Chiefs left to join the Kentucky–Illinois–Tennessee League. The league played 1951 with six teams, as Danville Dans joined from the Illinois–Indiana–Iowa League.[6][3]

In 1952, the league again expanded to eight teams, adding the Commodores in Decatur, Illinois and Cardinals in Hannibal, Missouri, while Vincennes relocated to Canton, Ohio.[7][3] In 1953, the Canton and Centralia franchises both folded and the league returned to six teams.[8][3] There was expansion again in 1954, as two Iowa teams, the Clinton Pirates and Dubuque Packers returned the league to eight members.[3][9]

In the final season of the league, the Danville Dans moved to Kokomo, Indiana and became the Kokomo Giants and Mount Vernon moved to Lafayette, Indiana as the Lafayette Red Sox. Following the 1955 season, Hannibal moved to become the Michigan City White Caps, joining Kokomo, Lafayette, Clinton, Dubuque, Decatur, Mattoon and Paris in the renamed Midwest League.[10][11] The Midwest League still exists today, with 16 teams.[12]

[13]

1949 Mississippi–Ohio Valley League

Playoffs: Mattoon 3 games, Centralia 0; Paducah 3 games, West Frankfort 0;
Finals: Paducah 4 games, Mattoon 3.

1950 Mississippi–Ohio Valley League - schedule

Playoffs: Centralia 3 games, Mattoon 1; Paducah 3 games, West Frankfort 0;
Finals: Cancelled; Bad Weather & Military Call–up.

1951 Mississippi–Ohio Valley League

Playoffs: Mt. Vernon 2 games, Centralia 0. Danville 2 games, Paris 1.
Finals: Danville 2 games, Mt. Vernon 0.

1952 Mississippi–Ohio Valley League - schedule

Vincennes moved to Canton June 7.
Playoffs: Hannibal 3 games, Danville 1. Decatur 3 games, Paris 2.
Finals: Decatur 3 games, Hannibal 1.

1953 Mississippi–Ohio Valley League - schedule

Playoffs: Decatur 3 games, Hannibal 0. Paris 3 games, Mattoon 0.
Finals: Decatur 3 games, Paris 2.

1954 Mississippi–Ohio Valley League - schedule

Playoffs: Clinton 2 games, Decatur 0. Danville 2 games, Dubuque 1. .
Finals: Danville 3 games, Clinton 1.

1955 Mississippi–Ohio Valley League - schedule

Playoffs: Dubuque 2 games, Clinton 0. Mattoon 2 games, Kokomo 0. .
Finals: Dubuque 3 games, Mattoon 0.

Hannibal folded and all other teams from the league became charter members of the new, Class D level Midwest League, now a Low Class A circuit, and the Mississippi–Ohio Valley League folded.[13][12]

• Sumner, Benjamin Barrett. Minor League Baseball Standings:All North American Leagues, Through 1999. Jefferson, N.C.:McFarland. ISBN 0-7864-0781-6.