Interstate Intercollegiate Athletic Conference

The Interstate Intercollegiate Athletic Conference (IIAC) was a college athletic conference that existed from 1908 to 1970 in the United States. Schools in the conference at any given time were from Illinois or Michigan. The conference was originally called Illinois Intercollegiate Athletic Conference and also called the Little 19 Conference for a time, had a peak membership of 23 schools which were practically all the small colleges in Illinois at the time.

Final Members

School	Year Joined	Location	Mascot
Central Michigan University	1950-1951	Mount Pleasant, MI	Chippewas
Eastern Illinois University	1912-1913	Charleston, IL	Panthers
Illinois State University	1908-1909	Normal, IL	Redbirds
Western Illinois University	1914-1915	Macomb, IL	Leathernecks

Former Members

(may include non-baseball sponsoring schools and/or non-baseball tenures for member schools)

School	Year Joined	Left	Location	Mascot	Current Conference
Augustana College (IL)	1912-13	1936-37	Rock Island, IL	Vikings	College Conference of Illinois and Wisconsin
Blackburn College	1914-15	1922-23	Carlinville, IL	Beavers	St. Louis Intercollegiate Athletic Conference
Bradley University	1908-09	1936-37	Peoria, IL	Braves	Missouri Valley Conference
Carthage College	1912-13	1940-41	Macomb, IL	Leathernecks	College Conference of Illinois and Wisconsin
Eastern Michigan University	1950-51	1961-62	Ypsilanti, MI	Hurons	Mid-American Conference
Elmhurst College	1929-30	1940-41	Elmhurst, IL	Pirates	College Conference of Illinois and Wisconsin
Eureka College	1910-11	1941-42	Eureka, IL	Red Devils	St. Louis Intercollegiate Athletic Conference
Hedding College	1910-11	1925-26	Abingdon, IL	Orangemen	(The school merged with Illinois Wesleyan University in 1930)
Illinois College	1908-09	1936-37	Jacksonville, IL	Blueboys	Midwest Conference
Illinois Wesleyan University	1908-09	1936-37	Bloomington, IL	Titans	College Conference of Illinois and Wisconsin
Knox College	1908-09	1936-37	Galesburg, IL	Prairie Fire	Midwest Conference
Lake Forest College	1919-20	1936-37	Lake Forest, IL	Foresters	Midwest Conference
Lincoln College	1910-11	1927-28	Lincoln, IL	Lynx	Closed in 2022
Lombard College	1908-09	1928-29	Galesburg, IL	Golden Tornado	Closed in 1930
McKendree College	1912-13	1937-38	Lebanon, IL	Bearcats	Great Lakes Valley Conference
Millikin University	1908-09	1936-37	Decatur, IL	Big Blue	College Conference of Illinois and Wisconsin
Monmouth College	1908-09	1936-37	Monmouth, IL	Fighting Scots	Midwest Conference
Mount Morris College	1922-23	1930-31	Mount Morris, IL	Mountaineers/Mounders	(Merged with Manchester College following 1932)
North Central College	1927-28	1936-37	Naperville, IL	Cardinals	College Conference of Illinois and Wisconsin
Northern Illinois University	1920-21	1965-66	DeKalb, IL	Huskies	Mid-American Conference
Shurtleff College	1910-11	1936-37	Alton, IL	Pioneers/Bison	Closed in 1957 (Became part of the Southern Illinois University system)
Southern Illinois University Carbondale	1913-14	61-62	Carbondale, IL	Maroons/Salukis	Missouri Valley Conference
St. Viator College	1916-17	1937-38	Bourbonnais, IL	Irish	Closed in 1938
Wheaton College (IL)	1919-20	1936-37	Wheaton, IL	Crusaders	College Conference of Illinois and Wisconsin
William & Vashti College	1910-11	1916-17	Aledo, IL		Closed in 1918