Marshall started its tourney back in the Sixties, IIRC, later, after the crash, it became the Marshall Memorial Tourney, IIRC.
I distinctly remember going to the tourney in the 60s where, again IIRC, both Maryland AND Virginia of the ACC were in the same tourney field. Neither was that good at that time. Maryland, BEFORE Lefty Driesell built the TERPS into a National Power. Virginia's head coach was "Hoot" Gibson, if that tells you anything. I believe it was in the MU tourney that the HERD beat St. John's of NY, then another National strong boy, in a shootout between their all American, Mel Davis, and the HERD's Randy Noll, back before there was a 3 point line. Other name schools at the time who played in the MU tourney include, as noted, Ole Miss, also Oral Roberts, Oklahoma, who won the tourney, I believe. Also, I think in another tourney field perhaps Iowa State or OK State, from the Big 8, was also ini