Big Marsh Conference

Former Members
Allison, 1960-61 thru 1976-77
Aplington, 1960-61 thru 1976-77
Clarksville, 1960-61 thru 1982-83
Dike, 1960-61 thru 1963-64
Dumont, 1960-61 thru 1982-83
Fredericksburg, 1976-77 thru 1977-78
Hudson, 1960-61 thru 1963-64
Janesville, 1968-69 thru 1982-83
New Hartford, 1960-61 thru 1982-83
Newman Catholic, 1978-79 thru 1982-83 
Plainfield, 1968-69 thru 1982-83
Parkersburg, 1960-61 thru 1976-77
Steamboat Rock, 1978-79 thru 1982-83

Membership Changes
1978-79: Fredericksburg leaves. Steamboat Rock and Newman Catholic joins. Membership increases to 7.
1977-78: Aplington, Parkersburg, and Allison-Bristow leave to help form the Big Iowa Conference. Membership decreases to 6.
1976-77: Fredericksburg joins from the Cedar-Wapsie Conference. Membership increases to 9.
1968-69: Janesville and Plainfield join from the Cedar-Wapsie Conference.
1964-66: League is renamed the Big Marsh Conference.
1964-65: Hudson and Dike leave to help form the Mid-Iowa Conference.
1960-61: Clarksville, New Hartford, Dumont, Aplington, Parkersburg, and Allison of the Butler County Conference; Hudson, and Dike form the Central Valley Conference. Original membership is 8.