Oklahoma panhandle (English Wikipedia)

"Texas County, Oklahoma". Census.gov. U.S. Bureau of the Census. Retrieved April 15, 2023.
"United States Census Bureau Quick Facts". Archived from the original on February 2, 2022. Retrieved January 30, 2022.
U.S. Census website Archived July 9, 2021, at the Wayback Machine, United States Census Bureau. (accessed September 3, 2013)

historynet.com

"Oklahoma Panhandle: Badmen in No Man's Land". Wild West magazine. June 12, 2006. Retrieved November 30, 2012.

netstate.com

"Oklahoma Geography from NETSTATE". www.netstate.com. Archived from the original on June 21, 2013. Retrieved March 13, 2011.

nps.gov

"African Explorers of Spanish America". Park Ethnography Program. US National Park Service. Archived from the original on March 31, 2015. Retrieved April 13, 2015.

okhistory.org

Richter, Sara and Tom Lewis. "Cimarron Territory," Archived April 2, 2015, at the Wayback Machine Encyclopedia of Oklahoma History and Culture, Oklahoma Historical Society, Accessed July 1, 2015.
Turner, Kenneth R. "No Man's Land". Encyclopedia of Oklahoma History and Culture. Oklahoma Historical Society. Archived from the original on April 2, 2015. Retrieved November 30, 2012.
Sara Richter and Tom Lewis, "Cimarron Territory", Encyclopedia of Oklahoma History and Culture. Archived April 2, 2015, at the Wayback Machine Accessed April 13, 2013.

santafetrailresearch.com

Map of the Santa Fe Trail Archived March 13, 2016, at the Wayback Machine. Retrieved February 14, 2015.

southcarolina1670.wordpress.com

"Cimarron: Concept of Panhandle state nixed by political squabbling". November 4, 2015.

tdar.org

core.tdar.org

Leland Bement, "Beaver River Complex Contribution to Folsom Archaeology: An Update and Future Directions," The Digital Archaeological Record (2015).

tshaonline.org

Lintz, Christopher. "Antelope Creek Phase". Texas State Historical Association. Archived from the original on February 24, 2015. Retrieved March 17, 2015.

uselectionatlas.org

"Oklahoma". Dave Leip's Atlas of U.S. Presidential Elections. Archived from the original on October 24, 2020. Retrieved December 28, 2020.

web.archive.org

Richter, Sara and Tom Lewis. "Cimarron Territory," Archived April 2, 2015, at the Wayback Machine Encyclopedia of Oklahoma History and Culture, Oklahoma Historical Society, Accessed July 1, 2015.
"Oklahoma Geography from NETSTATE". www.netstate.com. Archived from the original on June 21, 2013. Retrieved March 13, 2011.
"African Explorers of Spanish America". Park Ethnography Program. US National Park Service. Archived from the original on March 31, 2015. Retrieved April 13, 2015.
Lintz, Christopher. "Antelope Creek Phase". Texas State Historical Association. Archived from the original on February 24, 2015. Retrieved March 17, 2015.
Map of the Santa Fe Trail Archived March 13, 2016, at the Wayback Machine. Retrieved February 14, 2015.
Turner, Kenneth R. "No Man's Land". Encyclopedia of Oklahoma History and Culture. Oklahoma Historical Society. Archived from the original on April 2, 2015. Retrieved November 30, 2012.
Sara Richter and Tom Lewis, "Cimarron Territory", Encyclopedia of Oklahoma History and Culture. Archived April 2, 2015, at the Wayback Machine Accessed April 13, 2013.
"United States Census Bureau Quick Facts". Archived from the original on February 2, 2022. Retrieved January 30, 2022.
Library of Congress. "America's Story from America's Library: The Dust Bowl of Oklahoma Archived June 2, 2013, at the Wayback Machine." Retrieved July 30, 2013.
U.S. Census website Archived July 9, 2021, at the Wayback Machine, United States Census Bureau. (accessed September 3, 2013)
Goins, Charles Robert and Danney Goble. "The Oklahoma Panhandle, 2000." In: Historical Atlas of Oklahoma. Archived October 13, 2023, at the Wayback Machine Available on Google Books.p. 206. Retrieved January 19. 2014.
"Oklahoma". Dave Leip's Atlas of U.S. Presidential Elections. Archived from the original on October 24, 2020. Retrieved December 28, 2020.