«KGOU». KGOU Radio. Archivado desde el original el 19 de agosto de 2011. Consultado el 14 de agosto de 2011.
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Worthington, S.M. (17 de diciembre de 1902). «From Oklahoma: Interesting Letter From Mr. S. M. Worthington Who is Visiting at Norman». Maysville, KY. p. 1. «The negro is thought less of here than the Indian. A negro is not allowed to live or stay in this town. They are hounded and driven out, mostly by the ultra abolitionists and hoodlums of the town.»
«Colored Man Loses His Suit». Chicago. 17 de septiembre de 1899. p. 19. «Negroes are not allowed to live or work in the town of Norman, containing 2,000 population. Last winter a negro went there to put a tin roof on a building. He was attacked by a mob and cruelly beaten. He brought suit for $20,000 against the town, claiming that the police officers failed to protect him.»
«Negro Women Should be Members of DAR, Pickens Tells Students». Pittsburgh. 16 de marzo de 1940. p. 3. «William Pickens set a precedent last week when he led the forum meeting at the University of Oklahoma at Norman, a town near here where Negroes are not allowed to live, and several years ago 'dared not be seen after dark.'».
Mathis, Nancy (14 de octubre de 1979). «Rights Commission Changes Norman». Oklahoma City, Oklahoma. p. 24A. «'Norman was a very traditional Southern town,' [Norman Human Rights Commission chair Richard] Kenderdine said, explaining reasons for the opposition. Until the early 1960s, Norman was known as a 'sundown town' where blacks dared not be seen in public after dark, he said. And even in the late 1960s, blacks had trouble buying homes in Norman, he said.»
