«California Death Index, 1940–1997». Ancestry.com. Arxivat de l'original el 12 de novembre 2011. [Consulta: 19 abril 2010]. Rogers' mother's maiden name is Cushing.
«1910 United States Federal Census». Ancestry.com. [Consulta: 19 abril 2010]. Oak Park, Cook, Illinois; Roll T624_239; Page: 2B; Enumeration District: 70; Image: 703. Carl is fourth of six children of Walter A. and Julia M. Rogers.
«California Death Index, 1940–1997». Ancestry.com. Arxivat de l'original el 12 de novembre 2011. [Consulta: 19 abril 2010]. Rogers' mother's maiden name is Cushing.