The Texas Playboys are on the blog
Here are some useful reviews of various Bob Wills compilations.
Junior Barnard was an amazing guitarist. (Bio and video at this link.) Junior takes a chorus on "Sweet Georgia Brown" (300 KB MP3). Here's Junior taking the final chorus of "Fat Boy Rag" (300 KB MP3). Junior's "coal mine chorus, low-down and dirty" on "Blackout Blues" (300 KB MP3). Rock and roll? These were all recorded about 1946.
Track by track guide to the "Take Me Back to Tulsa" box set -- when and where recorded, who's singing and playing.
I have the Proper "Take Me Back to Tulsa" box set, and it is terrific. Best of all, it should cost you about $20 and change for four CDs.