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Werner’s birth date is unknown, but he is conjectured to have been born in Kentucky. Records of any army service prior to the expedition are absent. He first appears at Camp Dubois during the winter of 1803-1804, disciplined for fighting with John Potts. He was convicted of being absent without leave during the waterborne party’s layover at St. Charles, Missouri, when the Corps awaited Lewis’ return from some final government business in St. Louis. Werner avoided further infractions, and serving satisfactorily but without distinction throughout the expedition.

See also The Lesser-Known Members of the Corps.