Fertile, at least 1940-41 thru 1952-53
Grafton, at least 1940-41 thru 1953-54
Hanlontown, at least 1940-41 thru 1953-54
Joice, at least 1940-41 thru 1953-54
Kensett, at least 1940-41 thru 1953-54
Manly, 1943-44 thru 1953-54
Plymouth, 1953-54 ONLY
Rock Falls, 1953-54 ONLY


Membership Changes

1954-55: Joice, Hanlontown, Rock Falls, Plymouth, and Grafton leave to help form the Circle Lake Conference. Kensett? League disbands.
1953-54: Fertile leaves to help form the North Star Conference. Manly leaves. Plymouth and Rock Falls of the Cerro Gordo Conference join. Membership remains at 6.
1943-44: Manly joins. Membership is 6.
1940-41: Earliest known lineup includes Joice, Kensett, Fertile, Grafton, and Hanlontown. Membership is 5.