Bunky started a vocal group called The Sheppards, in which he did not perform, and he shared control with Carl Davis over the Dukays (known for "Duke Of Earl", credited to their singer Gene Dixon aka Gene Chandler). He also started the Apex (4) label in 1959, co-founded Pam Productions, the Nat, Pam, and Wes labels, and Constellation Records in 1961, and founded Bunky Records (a division of Scepter) in 1966. He was closely involved with the early operation of the Chi Sound and Vee Jay Records labels as well.
His sons Billy and Stan were members of Skool Boyz in the 1980s.
He is not the same person as Bill Shepherd (Bee Gees arranger), William Shepherd (jazz trombonist) or Bill Shepherd (2) (1920s country blues man).