Paul Wenzel, in one of his props, seemingly pulled by a goose
Swede Johnson smoking a cigarette
The World of Clowns, by George Spreight
The Buck Book, by Klutz Press
The Hospital Clown a Closer Look: What Hospitals Need to Know About Clowns, What Clowns Need to Know About Hospitals
The Gospel in Greasepaint
The Jester Has Lost His Jingle, by David Saltzman -- highly recommended
Charlie Chaplin in "The Circus" - United Artists Picture - Lion in cage startles Charlie Chaplin
Charlie Chaplin, Director
The Floorwalker (1916) starring Charlie Chaplin, Eric Campbell, Lloyd Bacon, Edna Purviance