21st Kansas Militia Infantry RegimentThe 21st Kansas Militia Infantry was an infantry regiment that served in the Union Army during the American Civil War.ServiceThe 21st Kansas Militia Infantry was called into service on October 9, 1864. It was disbanded on October 29, 1864.Detailed serviceThe unit was called into service to defend Kansas against Maj. Gen. Sterling Price's raid. The regiment saw action at Byram's Ford, Big Blue, October 22. Westport October 23.Commander Colonel Sandy Lowe