Indiana (Pennsylvania) Gazette, June 26, 1920, page 1:

    Indiana County and Indiana town the eyes of all the readers of the readers of the countries of Butler, Armstrong, Jefferson, Cambria, and the northern half of Westmorland, are on you!
    Hundreds of automobile parties on July 5 will ride over to our beautiful Fair Grounds to enjoy and see our real party for the woefully needed extension to our hospital. ...
    Ernest efforts are being made to bring from Pittsburgh, Mr. Potts, of Doubleday, Hill and Co., with his wireless outfit, including a wireless telephone, and the transmission of music by wireless. Mr. Potts furnished the music for three dances in different parts of Pittsburgh, by wireless from one central orchestra.