^"The Curtain Pole", film promotion, The Moving Picture World (New York, N.Y.), 13 February 1909, p. 163. Internet Archive, San Francisco, California. Retrieved 7 March 2021.
^Kawin, Bruce F. How Movies Work. New York: Macmillan Publishing Company, 1987, pp. 46-47: a full 1000-foot reel of film in the silent era had a maximum runtime of 15-16 minutes. Silent films were generally projected at a "standard" speed of 16 frames per second, much slower than the 24 frames of later sound films. A 765-foot release in 1909 would have had a projection time of between 11-12 minutes.