A very enjoyable and informative BT. I guess the two biggest surprises for me were the Roy Eldridge/Joe Marsala session (I thought I knew early jazz pretty well, but I was totally unaware of this session) and Ella's big band - I knew she took over Chick Webb's band, but I don't particularly like her singing during that period, so I've never checked out any of that stuff.
I think I have that Harry Dial/Omer Simeon track on an old British Ace of Hearts LP. Should have gotten that one.
Loose Marbles - after my post slamming this track I listened again and thought it might be them. I hoped I was wrong, though, since I've enjoyed them playing on the street and at Donna's in New Orleans, but really hated this track. The clarinet player was kind of eccentric when I've heard them, but on this recording he, in my opinion, went over the top into some awful parody of early jazz clarinet.
Again, great job, Alex, and I hope my enthusiasm in posting my answers so early didn't put anyone off.