In 1813, Johnson commanded a Kentucky regiment at the Battle of the Thames, after which he claimed to have killed Tecumseh in hand to hand combat.

It was the only Kentucky regiment in the Confederate service to serve in the Army of Northern Virginia.

March 9, the 23rd Brigade was created, consisting of the Ninth Michigan, the 3rd Minnesota, and the 8th and 23rd Kentucky regiments.

He resigned that command and transferred to Georgia, assuming command of the Kentucky regiments in the cavalry of Joseph Wheeler.

Returning, Kentucky regiments, camping near here, given leave to seek food, horses, get recruits, visit families.

The only time the East Room had ever come alive was during the weeks that a Kentucky regiment of volunteers, eager to protect President Lincoln, had bivouacked in the room, where they had used the fireplaces for cooking.

He went to Louisville, Kentucky, to recruit volunteers, which he helped to secretly move to Camp Boone, where several other pro-Confederacy Kentucky regiments were forming, despite the state's official policy of neutrality.

He served as colonel of a Kentucky regiment during the Spanish-American War.