There is a DVD documentary about JOE Bussard:
Desperate Man Blues: Discovering the Roots of American Music
Joe Bussard (Actor), Edward Gillan (Director)
This DVD documentary chronicles the amazing life in music of legendary record collector, Joe Bussard (founder of Fonotone Records). Blues. Gospel. Jazz. Hillbilly. The late 1920s was the big bang of the music industry. King of record collectors Joe Bussard tells the story of "America's real music" with passionate enthusiasm in his own inimitable style. The film has an outstanding soundtrack featuring artists Charley Patton, Son House, The Carter Family, Uncle Dave Macon, Blind Willie McTell and a roster of other roots musicians. Deluxe DVD with 51-minute documentary feature film and 30-minute featurette; clear amaray case; NTSC format, all region DVD.

Bussard's collection is the source for many country and blues
reissue rare tracks.

An iteresting CD exploration of that collection is:
Down In The Basement: Joe Bussard's Treasure Trove of Vintage 78s 1926-1937 (Jewel Case with 28-page booklet) by Uncle Dave Macon, Rev Gary Davis, Big Bill Broonzy, Stripling Brothers, Kokomo (2003) Audio CD   OLD HAT Records.
I believe it was originally issued with extensive documentation,
now out of print, but a less elegant presentation is available.

He also recorded and LP for PIEDMONT PLP 13160
"Jolly Joe (Bussard) and His Jug Band - First New Jug Band In The Traditional Style "
Group includes Joe Bussard, Bob Coltman, Oscar Myers, Jerry Marcum.

Best wishes, Thomas.