This is an excellent documentary on the history of the circus in Indiana. Growing up in Peru, Indiana, REW witnessed the the rise and decline of this industry which wintered in his home town. It served as a life long inspiration to REW. A detail of his work "The Big Cage" appears at 00:58.
This is an interesting look at the Hagenbeck-Wallace Circus which REW illustrated extensively in his work. It was produced by the International Circus Hall of Fame in Peru, IN.