Thanks! Even if the gig listing contained the name of a drummer, I would give more credence to what is being said on stage during the concert... Dorham worked with Roger Blank and Huss Charles... So there's a good chance he worked with Denis Charles as well.... But that doesn't mean anything... I am pretty confident that if there been a striking argument justifying the transition from Huss to Denis, the Jazz Detective would have shared it with us...
Most likely, they didn't realize Huss Charles was an actual drummer and just asked themselves for a plausible name to fill into "... Charles" in such a way that it might even help sales.
This is the usual crap we've come to expect from them, who needs a 20 page booklet if the most basic things (like the list of participating musicians) are lacking.