Clay Conference

Former Members
Arnolds Park, 1960-61 thru 1979-80
Ayrshire, 1963-64 thru 1977-78
Clay Central, 1964-65 thru 1977-78
Cornell, at least 1949-50 thru 1958-59
Everly, 1953-54 thru 1963-64?
Gillett Grove, at least 1949-50 thru 1962-63
Greenville-Rossie, at least 1949-50 thru 1963-64
Harris-Lake Park, 1969-70 thru 1979-80
Lake Center, at least 1949-50 thru 1961-62
Little Rock, 1978-79 thru 1979-80
Melvin, 196?-6? thru 1979-80
Ocheyedan, 196?-6? thru 1979-80
Peterson, at least 1949-50 thru 1958-59
Rembrandt, 1964-65 thru 1978-79
Royal, at least 1949-50 thru 1963-64
Sioux Valley, 1959-60 thru 196?-6?
South Clay, 1963-64 thru 1977-78
Webb, at least 1949-50 thru 1962-63

Membership Changes
1980-81: Arnolds Park, Ocheyedan, and Harris-Lake Park leave for the Cornbelt Conference. Melvin is absorbed by Hartley (Sioux Valley Conference). Little Rock? Conference disbands.
1979-80: Rembrandt consolidates with Sioux Rapids (Cornbelt Conference) to form Sioux Rapids-Rembrandt. The new schools competes in the Cornbelt Conference. Membership decreases to 5.
1978-79: South Clay, Clay Central, and Ayrshire leave to help form the River Valley Conference. Little Rock joins. Membership is 6.
1969-70: Harris-Lake Park joins.
1965-70: Sioux Valley  leaves. Ocheyedan and Melvin join. Membership is 8 in 1969-70.
1964-65: Royal and Greenville-Rossie consolidate to form Clay Central. Everly leaves? Rembrandt  joins. Membership is 6?
1963-64: Gillett Grove and Webb consolidated to form South Clay. The new school remains in the conference. Ayrshire joins. Membership remains at 7.
1962-63: Lake Center leaves. Membership decreases to 7.
1960-61: Arnolds Park joins. Membership increases to 8.
1959-60: Peterson and Cornell consolidate with Linn Grove, Highview, and Brooke to form Sioux Valley. The new school remains in the conference. Membership decreases to 7.
1953-54: Everly joins. Membership is 8. This is the lineup through at least 1958-59.
1950-51: Brooke and Linn Grove leave. Membership decreases to 7. 
1949-50: Earliest known membership includes Brooke, Linn Grove, Lake Center, Cornell, Gillette Grove, Webb, Royal, Peterson, and Greenville-Rossie. Membership is 9?