The Uncle Charley that Gilbert talks about is not the same Uncle Charley that would join the series a season later. Gilbert's Uncle Charley has the last name of Brunditch. Charley O'Casey is the one who takes over for Bub.
In this episode, Bub's brother, Uncle Charly, is mentioned for the first time in the series. Midway through the following season, William Demarest would play Uncle Charly, replacing William Frawley's Bub when Frawley was too ill to continue the weekly grind of filming.