1. “Actors and Writers Meet Labor Units,” Motion Picture Daily, 22 Jan. 1936, p. 6.
2. “Are Extras People?” The Screen Guild’s Magazine, vol. 2, no. 9, Sept. 1935, p. 3.
3. Barbary Coast. Directed by Howard Hawks, performances by Miriam Hopkins, Edward G. Robinson and Joel McCrea. Samuel Goldwyn Productions, 1935.
4. Ceplair, Larry. “The Film Industry’s Battle Against Left Wing Influences, From the Russian Revolution to the Blacklist.” Film History, vol. 20, no. 4, 2008, pp. 399–411.
5. Collins, Andrew. “Hollywood’s Yes-Men Say ‘No’: The Acquiescers of the Golden West Stick their Chins Out (but can they take it?) When it Comes to Unionism,” New Masses, 31 Aug. 1937, pp. 6–8.