Okeedokee Swamp is a pun on Okefenokee Swamp, a wetland actually located in southern Georgia near the Florida border. Okefenokee is the home of the characters from the defunct "Pogo" comic strip.
Voice artist Daws Butler also voiced rival studio Hanna-Barbera's animated Alligatoridae, Wally Gator, in the same time frame. Wally had less of a Southern accent than Gaby, though he had a decidedly Southern relation, Colonel Zachary Gator, voiced by Mel Blanc.