12inch x 18inch Poster The Walter L. Main Circus was founded by Walter L. Main in 1886. Walter's father "William" was a horse farmer, trainer and trader in Trumbul, Ohio. William began supplying horses to circuses, which led to him joining the "Hilliard & Skinner's Variety and Indian show". William toured with several shows and in the 1870s began his own, very small circus. 1904 was the last year that the "Walter L. Main Circus" operated under Walters ownership, the circus was sold that year to William P. Hall. There is a border around the image. The image size is correct.