found: Burns, R. Songs from Movie movie [SR] p1979:label (Sheldon Keller)
found: Library of Congress Manuscript Division for Caesar, S. Papers, 1950-1963(Keller, Shelly; writer for Your show of shows and other tv comedy series)
found: IMDb, Aug. 16, 2006(Sheldon Keller; b. Aug. 20, 1923, Chicago, Ill.; writer, composer, producer, director)
found: New York times WWW site, Sept. 4, 2008(Sheldon Keller; called Shelly; b. Sheldon Bernard Keller, Aug. 20, 1923, Chicago; d. Monday [Sept. 1, 2008], Valencia, Calif., aged 85; Emmy-winning comedy writer whose work included Caesar's hour, one of the jewels of 1950s television)