further additions:

JEL 1 The Mound City Blue Blowers with Red McKenzie and Eddie Lang (Blue Blowin' Jazz Vol. 1)
JEL 2 Walter Roland and Georgia Slim (The Male Blues Vol. 1)
JEL 3 Tampa Red and Georgia Tom (The Male Blues Vol. 2)
JEL 4 Blind Blake and Ramblin' Thomas (The Male Blues Vol. 3)
JEL 5 Tall Tom and Pinewood Tom [Teddy Moss and Josh White] (The Male Blues Vol. 4)
JEL 6 King Oliver's Creole Jazz Band
JEL 7 Freddie Keppard New Orleans Trompet
JEL 8 Blind Lemon Jefferson and Buddy Boy Hawkins (The Male Blues Vol. 5)
JEL 9 Louis Armstrong and the Red Onion Jazz Babies
JEL 10 Hound Head Henry and Frankie Jaxon (The Male Blues Vol. 6)
JEL 11 Fletcher Henderson Orchetra (with Louis Armstrong)
JEL 12 Ma Rainey and Ida Cox (The Female Blues Vol. 1)
JEL 13 Blind Lemon Jefferson and Ed Bell (The Male Blues Vol. 7)
JEL 14 Bertha Henderson and Rosa Henderson (The Female Blues Vol. 2)
JEL 18 Clarence Williams (The Jazz Originators Vol. 1)
JEL 19 The Bucktown Five (The Jazz Originators Vol. 2)
JEL 20 Jelly Roll Morton [Fishtail Blues / High Society - Big Fat Ham / Muddy Water Blues]
JEL 22 Ma Rainey and Trixie Smith (The Female Blues Vol. 3)
JEL 23
JEL 24 Blind Lemon Jefferson and Huddie Ledbetter (The Male Blues Vol. 8)

JEN 5 Memphis Slim goes to Kansas City

JFL 2001 Blind Blake

JGN 1001 Primitive Piano featuring Speckled Red, Billie Pierce, James Robinson, Doug Suggs
JGN 1003 Robert Pete Williams: Angola Prisoners' Blues