The first Conference constitution was published in January 1923. Also that year, Judge Hubert Utterback of Des Moines, Iowa was named the first conference commissioner and Iowa Teachers (now known as University of Northern Iowa) was accepted as a member. Columbia College (now known as Loras College) was admitted in 1926. Ellsworth left the Conference in 1927. That spring, the Conference's name was changed to the "Iowa Intercollegiate Athletic Conference." After a three-year ban, athletics were reinstated at the University of Dubuque in 1928–29, and it joined the conference in 1929. Wartburg College was admitted to the conference in 1936, beginning competition the following year. Morningside College dropped out in 1936 because of inactivity. William Penn was suspended from the Conference in 1949 for using ineligible players. The school was back in the Conference in 1951, though it did not compete in football until later. In 1951, St. Ambrose and Loras dropped from football competition.