In 1947, the event was expanded to two days and moved to the Hotel Sherman to take advantage of the larger facility and accommodations for out-of-town directors.

Nutt, Howard Lyons, and Neil Kjos Sr. - invited outstanding bands to perform, based upon the reputations of the organization and their director.

In addition to giving a formal concert, the bands were also expected to provide a sight-reading session, with the selections being requested by audience members on the spur of the moment.

Past clinicians include Gunther Schuller, Tim Lautzenheiser, John Corigliano, Wynton Marsalis, Mark Camphouse, Frank Ticheli, Frederic Fennell, Col. Arnald Gabriel, Himie Voxman, and Karel Husa.

Members of the current board of directors are: John Clinton (Vice President), Richard Crain (Past-President), Paula Crider, Rodney Dorsey (President), Jose Diaz, Richard Dunscomb (Vice President), Antonio García (Secretary), Corey Graves, Soo Han, Sam Hodson, Mark Kjos, Herman Knoll, Mary Land, Tim Lautzenheiser, Mark Laycock, Lisa MacDonald, Beth Peterson, George Quinlan (Treasurer), and Kevin Sedatole.

At the 60th anniversary of the Midwest Clinic in 2006, all living past award winners were invited to attend and be honored at the conference.