Mary Cohan, George M. performer Theatrical Performance 1920-10-18 Knickerbocker Theater Opened in Washington as The House that Jack Built, but with George M. Cohan at the helm no one was too startled by the change of title. One of the best loved and best remembered of the decade's shows. Anytime the book faltered, Cohan sent his dancers spinning and tapping across the stage. Performing Arts Encyclopedia http://www.loc.gov/performingarts Bordman, Gerald: American Musical Theatre: A Chronicle. New York: Oxford University Press (1992). Tap Dance America http://lcweb2.loc.gov/diglib/ihas/html/tda/tda-home.html George M. Cohan (biography) loc.music.tdabio.68 tda IHAS 151216 loc.music.tda.372