The personnel on "Blow Wynn Blow" and "J.W. Bop" was as follows:
Jim Wynn - baritone sax on "Blow Wynn Blow" and tenor sax on "J.W. Bop, Eddie Preston - trumpet, Eddie Hale - alto sax, Pete Peterson or Freddie Simon or Eddie Davis - tenor sax, Zel Kindred - piano, Shifty Henry - bass, Robert 'Snake' Sims - drums.
The tracks were recorded in November 1948. Both are good romping instrumentals which sit smack dab in the middle of what I like to call the Be Bop Wino zone - honkingly good R&B veering towards jazz.