I was at this show at Hot House that somebody else wrote up:
"the New Horizon Ensemble consisting of saxophonist and leader Ernest Dawkins, trumpeter Maurice Brown, trombonist Steve Berry, bassist Darius Savage, and drummer Isaiah Spensor. The six special guests were an even bigger surprise: Roscoe Mitchell, Ari Brown, an unidentified musician on saxophones, Dee Alexander and Taalib Din Zayid on vocals, and a second bassist, unidentified."
http://users.rcn.com/jazzinfo/1105/27thChicago.html
I can't remember, but maybe Bankhead was the second bassist?
I've also seen Dee Alexander with Douglas Ewart's ensemble.
The highlight of one of the festival jams at the Record Mart was Fred Anderson's trio (Aoki & Drake) plus Dawkins, Ari Brown and Malachi Thompson.