The Battle of Clark's Mill was a battle of the American Civil War, occurring on November 7, 1862 in Douglas County, Missouri. Having received reports that Confederate troops were in the area, Capt. Hiram E. Barstow, Union commander at Clark's Mill, sent a detachment toward Gainesville and he led another southeastward. Barstow's men ran into a Confederate force, skirmished with them and drove them back. His column then fell back to Clark's Mill where he learned that another Confederate force was coming from the northeast. Unlimbering artillery to command both approach roads, Barstow was soon engaged in a five-hour fight with the enemy. Under a white flag, the Confederates demanded a surrender, and the Union, given their numerical inferiority, accepted. The Confederates paroled the Union tro