Jefferson Barracks in South St. Louis County has an incredible history. Founded in 1826, the U.S. trained its calvary there! Find out who Thornton Grimsley is and how he became rich for his invention associated with the calvary. Nini Harris, local historian and author of "Jefferson Barracks - Defending the United States since 1826, An Illustrated Timeline" takes us through the 1800's to today. Wow, what a history!
