Sheridan commanded Fort Yamhill from June 26, 1857 to July 31, 1857, and from June 26, 1861 to September 1, 1861 and was promoted to the rank of captain on May 14, 1861.
Sheridan commanded Fort Yamhill from June 26, 1857 to July 31, 1857 and again from June 26, 1861 to September 1, 1861. He was promoted to captain on May 14, 1861.