http://www.npg.org.uk/collections/search/portraitLarge/mw127715/Sir-Hugh-Maxwell-Casson

http://www.npg.org.uk/collections/search/portraitLarge/mw208934/Sir-Hugh-Maxwell-Casson

http://en.wikipedia.org/wiki/Hugh_Casson

http://old.manfamily.org/Hugh_Casson.htm