For argument that Mutual was primarily a vehicle for The Lone Ranger, see, e.g., Olson (2000), p. 173; Head (1976), p. 142; Schwoch (1994). For counterargument and popularity of Lum and Abner, see, e.g., Hilmes (1997), pp. 107–108; Hollis (2001), p. 41; McLeod, Elizabeth (April 12, 1999). "Some History of the Mutual Broadcasting System/Correspondence: 'Mon, 12 APR 99'". History of American Broadcasting (Jeff Miller). Retrieved March 1, 2010.
web.archive.org
"Pine Ridge". Arkansas Department of Parks and Tourism. Archived from the original on May 1, 2011. Retrieved February 4, 2011.