History of weather observations ; Fort Washita, Oklahoma, 1842 - 1861 ;

Grice, Gary K.

"Weather observations at Fort Washita (based on the National Climate Data Center database) were taken by U.S. Army surgeons, most likely in the vicinity of the hospital. This requirement of observing the weather by Army surgeons was mandated in 1814 by Dr. James Tilton, Surgeon General of the Army. Although the project grew slowly in the Army Medical Corps during the early 19th Century, by the 1840s, weather observations were important duties of Army field surgeons, including those at Fort Washita. The first observation was taken at Fort Washita on Jul 12, 1842 with the last weather observation recorded on Mar 31, 1861"-Executive summary.

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