Quite possibly the first national coverage of the Ringling Bros. and Barnum & Bailey Circus' "College of Clowns" was a Newsweek article from the December 2, 1968 issue.
Pictured here is Danny Chapman teaching the class Mike "Coco" Polakovs' painters entree. No wonder Coco was none too keen on Clown College!
Students: (From left to right)
Obscured by Danny Chapman at far left: Unidentified
Umbrella Hat: Unidentified
Foreground: Glen "Frosty" Little, Louis DeJesus
Crouching at far right: Dalton Dearborn
Perhaps Michael Karp can help identify some of the others. Thanks to everyone for your contributions to identifying the performers in the photo so far!