“The idea for the Keystone Cops came from Hank Mann, and they were named for the Keystone studio, the film production company founded in 1912 by Sennett”
https://en.wikipedia.org/wiki/Keystone_Cops
“Mack Sennett...started in films in the Biograph Company of New York City, and later opened Keystone Studios in Edendale, California in 1912. Keystone possessed the first fully enclosed film stage, and Sennett became famous as the originator of slapstick routines such as pie-throwing and car-chases, as seen in the Keystone Cops films. He also produced short features that displayed his Bathing Beauties, many of whom went on to develop successful acting careers.”
“He said that the most respected lawyer in town, Northampton [MA] mayor (and future President of the United States) Calvin Coolidge, as well as Sennett’s mother, tried to talk him out of his musical ambitions.”
“Many successful actors began their film careers with Sennett, including Marie Dressler, Mabel Normand, Charlie Chaplin, Harry Langdon, Roscoe Arbuckle, Harold Lloyd, Raymond Griffith, Gloria Swanson, Ford Sterling, Andy Clyde, Chester Conklin, Polly Moran, Louise Fazenda, The Keystone Cops, Bing Crosby, and W. C. Fields.”
https://en.wikipedia.org/wiki/Mack_Sennett
I didn’t know that.
Thanks for the information!