The original locaters of the claims on which the World’s Fair and later Saginaw mines were developed on were Lemuel Shattuck, Joseph Muheim, Frank Dubacher and Edward Grenfell. By 1903 the incline shaft was completed to a depth of 383ft.  In  March 1904  the property was sold to Saginaw Development Company for $150,000 This company did 40ft. of drifting for diamond drilling in 1905 and the 350ft. level of the nearby Saginaw shaft was being driven to connect to the World’s Fair Incline. In 1913 the property was sold to the Calumet and Arizona Mining Company. The C&A developed the nearby Saginaw shaft, but no work was done with the World’s Fair Mine.