Annotation
Many of the early recordings had fairly vague credits. There are instances of Yabby U, Yabby You and Vivian Jackson being the artist for tracks on the same album (although he mostly used Vivian Jackson when in collaboration with backing groups such as The Prophets), or for the same tracks but changing depending which compilation it's on.
Yabby U is the most reliable name, and the one used most consistently.
Discography
Showing all release groups by this artist (Show official release groups / Show official various artist release groups / Show all various artist release groups)