The best scenario I can come up with, is that J. Mayo Williams was the owner of the Harlem label and he put his name on the song to receive composer royalties. When Stick McGhee recorded it again for Atlantic, Ahmet Ertegun had his name removed.
A rocking remake of the same sides that guitarist and singer Granville "Stick" McGhee had already recorded for Harlem Records in 1946. His well-known older brother, Walter "Brownie" McGhee, also played guitar and sang harmonies, the other "Buddies" were Wilbert "Big Chief" Ellis on piano, Gene Ramey on bass, and an unknown drummer.
"Drinkin' Wine, Spo-Dee-O-Dee" became the label's first big hit and sold about 200,000 copies until the end of 1949. It never topped the R&B charts but ranked high on the 1949 Year's Top R&B Records (#7 according to retail sales, #3 according to juke box plays), and paved the way for Atlantic's change from a more jazz-oriented label to the most important R&B company of the 1950s and 1960s. McGhee, however, could never repeat this success and died in 1961, at the age of 44, of lung cancer.
The story of the Atlantic re-recording has been told on 45cat. A 45 rpm issue of this record, however, was apparently not released before 1967.