Shown here 101 years ago are the vaudeville duo the Duncan Sisters, Rosetta and Vivian. They are shown in the May 1921 issue of Science & Invention at the home of Robert F. Gowen, chief engineer of the DeForest Radio Telephone & Telegraph Company. From the transmitter at his home, the broadcast was heard in Connecticut, Ohio, Arkansas, Illinois, and Washington, D.C.
Perhaps their broadcast performance included “The Baby Sister Blues,” which you can hear on this 1923 recording: