Cite

Brough, Charles Hillman, 1876-1935. "Letter Governor Charles H. Brough, Arkansas to Governor James B. A. Robertson, 1920 September 16." Oklahoma. Department of Libraries. 1921-09-16, http://digitalprairie.ok.gov/cdm/ref/collection/race-riot/id/243.

Brough, Charles Hillman, 1876-1935 (1921-09-16). Letter Governor Charles H. Brough, Arkansas to Governor James B. A. Robertson, 1920 September 16. Retrieved from http://digitalprairie.ok.gov/cdm/ref/collection/race-riot/id/243

Brough, Charles Hillman, 1876-1935. "Letter Governor Charles H. Brough, Arkansas to Governor James B. A. Robertson, 1920 September 16." 1921-09-16. January 10, 2026. http://digitalprairie.ok.gov/cdm/ref/collection/race-riot/id/243.