Take a look at these credits. I don't know how on earth he managed it, but he also ran the shoeshine stand at Republic Studios, the former location of which is not far from my home. Here's a link about Toones at b-westerns and a meager wiki. Damn.
Fred 'Snowflake' Toones as "George, Club Car Bartender" in The Palm Beach Story. That's William Demarest on the right. Charles R. Moore also has a featured comedic turn, sadly listed only as "Porter." Wanna get really depressed? Read his credits. Both Toones and Moore were Sturges favorites.