Byer, Herman B. , United States. Bureau of Labor Statistics and United States. Works Progress Administration. "West South Central Cities, Volume VII" in Salaries and Hours of Labor in Municipal Fire Departments, July 1, 1938 : Bulletin of the United States Bureau of Labor Statistics, No. 684 (1941). https://fraser.stlouisfed.org/content/?item_id=494406&filepath=/files/docs/publications/bls/bls_0684-v7_1941.pdf, accessed on May 27, 2018.