↑ Long, Patrick (2009), "Irwin, Herbert Carmichael", in McGuire, James; Quinn, James (eds.), Dictionary of Irish Biography, vol.4, Cambridge: Cambridge University Press, pp.921–922
↑ Saward, Dudley (1984). "Bomber" Harris: the story of Marshal of the Royal Air Force, Sir Arthur Harris, Bt, GCB, OBE, AFC, LLD, Air Officer Commanding-in-Chief, Bomber Command, 1942-1945. London: Buchan & Enright. OCLC11082290.
↑ Veronico, Nicholas A. (2005). The Blue Angels: A Fly-By History: Sixty Years of Aerial Excellence (Illustrateded.). Minneapolis, Minnesota: Zenith Imprint. p.46. ISBN0-7603-2216-3.
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