ZZ was owned by Millie and Ed Ruton. They ran a successful country music venue, Hillbilly Park. The label seems to have started to release records by Jimmie John, but a couple other artists had records

No # Jimmie John Solid Rock / Beyond The Blues 1958
9523 Jimmie John Just Got Kids / What Kind Of "god" Do You Think You Are? 1959
9524Sadie and Buddy RussellShackled / Not Even Friends
Jimmie John Hello Guitar / You Just Don't Care
Sadie and Jimmie John
I'll Tell You Why /  They Won't Let Me Forget

100Pine Mountain BoysRed Rocket Train / Outcast

On 9524, the B side credit is Buddy Russell and Sadie