The following article, which outlines the promotional activities of the stars of The Greatest Show on Earth, appeared in the February 23, 1952, edition of Billboard magazine.
Mr. Stewart’s plans are given under the “Publicity Tour” heading and are enlarged below to make them easier to read.
His appearance on Welcome Travelers (February 5th) is mentioned. Other shows on which he is known to have appeared during this time frame are: WMAL-AM, Washington DC (February 9th), Tex and Jinx (February 11th), and Betty Crocker (February 25th).
There were undoubtedly many other radio appearances during this time, but documenting them will require much more research.