It is a Disney historical fact. The concept for Main Street U.S.A., as it was initially conceived for Disneyland, and then subsequently exported to Disney Parks in Florida, Tokyo, Paris and Hong Kong, was based directly on Marceline, Missouri, Walt's boyhood hometown. The notable irony to this is that, unlike so many other small towns across the Midwest and the entire U.S.A., there is in fact no Main Street in Marceline.
Marceline's equivalent primary thoroughfare is Kansas Avenue. The residents however have sought to clarify the Disney connection as reflected in this Snapshot of a Marceline street clock and signpost.