Illinois Valley Conference Membership 1928-1973 1928 1929 1930-31 1932-38 1939-55 Carrollton Carrollton Carrollton Carrollton Carrollton Jerseyville Greenfield Greenfield Greenfield Greenfield Pittsfield Jerseyville Jerseyville Jacksonville Jerseyville Pleasant Hill Pittsfield Pittsfield Jerseyville Pittsfield Roodhouse Pleasant Hill Pleasant Hill Pittsfield Pleasant Hill White Hall Roodhouse Roodhouse Pleasant Hill Roodhouse   White Hall White Hall Roodhouse White Hall     Winchester White Hall Winchester 1956-60 1961-62 1963-67 1968-69 1970-73 Carrollton Calhoun Calhoun Calhoun Calhoun Greenfield Carrollton Carrollton Carrollton Carrollton Hardin Greenfield Greenfield Greenfield Greenfield Pleasant Hill Pleasant Hill North Greene North Greene North Greene Roodhouse Roodhouse Pleasant Hill Southwestern Winchester Virginia Southwestern Southwestern Winchester   White Hall White Hall Winchester     Winchester Winchester