"June B. Grimstead", England and Wales Birth Registration Index, 1837-2008; Grimsby, Lincolnshire, England; 1932, volume 7A, page 891. FamilySearch, an online genealogical database provided as a public service by The Church of Jesus Christ of Latter-day Saints, Salt Lake City, Utah. Retrieved June 20, 2017.
"Spiritual Warriors EPK Robert Easton". Interview with Robert Easton about his travels while a cast member during the filming of Spiritual Warriors (2007); recorded February 23, 2014. Video of interview available for viewing on YouTube. Retrieved July 5, 2017.
"Dorothy Shay" episode, The Jack Benny Program, S02E01, November 4, 1951; full episode available for viewing on YouTube. Retrieved June 26, 2017.
According to Robert Easton in a video interview available on YouTube, he patterned his voice for X-2-Zero in Stingray after the speech profile of actor Peter Lorre with whom he had worked in the 1961 film Voyage to the Bottom of the Sea. Easton stated in the same interview that his voice characterization for "Phones" in Stingray was based on the southern rural American dialect he used for his role as the submarine crew member "Sparks" on the same 1961 film. "Voice Actor Robert Easton Discusses Stingray", interview with Robert Easton (ca. 2005-2010), posted after Easton's death by Stephen La Rivière on YouTube on September 7, 2014. Retrieved July 1, 2017.
Interview with Robert Easton, The Tonight Show with Johnny Carson, originally broadcast on the National Broadcasting Company's television network, August 10, 1979. Interview segment available for viewing on YouTube. Retrieved July 1, 2017.
