Keen, Tracer of Lost Persons,[12] The Right to Happiness,[14] Cavalcade of America,[15] Grand Central Station,[16] The Story of Mary Marlin,[17] and Silver Theater.

[8] His Broadway credits include First Episode (1934), Othello (1935), Macbeth (1935 and 1941–1942), Damaged Goods (1937), As You Like It (1937), Stop-Over (1938), Madame Capet (1938), Boudoir (1941), She Stoops to Conquer (1949–1950), Richard III (1953), Inherit the Wind (1955–1957), Pictures in the Hallway (1956), I Knock at the Door (1957), Advise and Consent (1960–1961), The Right Honourable Gentleman (1965–1966), Weekend (1968), A Patriot for Me (1969), and Lost in the Stars (1972).

[12] His work included illustrating Ernest Peixotto's book, A Bacchic Pilgrimage, published by Charles Scribner's Sons[25] and painting "three murals for some swank bowling alleys in Washington.

[9] A newspaper obituary described Cotsworth as "an accomplished painter of oils and watercolors," noting that at the time of his death he was "listed in the current Who's Who in American Art.

"[22] Cotsworth was elected a member of the New York Local Board of the American Federation of Radio Artists in 1946[27] and in 1949.