Union Major Emory S Foster moved his 800 hundred men from Lexington, Missouri to Lone Jack. Upon moving in they come up against 1,600 Confederate troops under the command of Colonel John Trousdale Coffee. On August 15th 1862 about 9 pm the Union force attacked the Confederate camp sending the soldiers scattering.
Early the next morning Foster was told that a large Confederate force was advancing. They attacked and over the course of five hours of fighting Foster was wounded and the Union troops were forced to retreat. They returned to Lexington.
Although the battle was a Confederate victory, they were forced to leave the area by the advance of a large number of Union troops.
If you’re interested in reading more, check the Lone Jack Historical Society web page.