Paul Winchell (C) and his dummy Jerry Mahoney (L) perform beside Major Bowes (R) on the Major Bowes’ Original Amateur Hour (1948).
Source: paulwinchell.com
Edward Bowes (14 June 1874, San Francisco – 13 June 1946, Rumson, New Jersey) was an American radio personality of the 1930s and 40s whose Major Bowes’ Amateur Hour was the best-known amateur talent show in radio during its eighteen-year run (1934-1952) on NBC Radio and CBS Radio.
Read more about Major Bowes at Wikipedia or at the Internet Movie Database
Nearby you will also find Keenan Wynn, Belle Bennett, and many others.