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 official release groups for various artists (Show official release groups / Show all release groups / Show all various artist release groups)