<P> Jefferson Barracks National Cemetery is an American military cemetery located in St. Louis County, Missouri, just on the banks of the Mississippi River . The cemetery was established after the American Civil War in an attempt to put together a formal network of military cemeteries . It started as the Jefferson Barracks Military Post Cemetery in 1826 and became a United States National Cemetery in 1866 . </P> <P> The first known burial was Elizabeth Ann Lash, the infant child of an officer stationed at Jefferson Barracks . </P> <P> The cemetery is administered by the Department of Veterans Affairs on the former site of Jefferson Barracks . It covers 331 acres (134 ha) and the number of interments as of 2014 is approximately 188,000 . The cemetery is listed in the National Register of Historic Places . </P> <Ul> <Li> Medal of Honor recipients <Ul> <Li> Major Ralph Cheli, for heroism while leading a bombing mission in World War II . </Li> <Li> Donald D. Pucket, pilot in the U.S. Army Air Forces, for action World War II </Li> </Ul> </Li> <Li> Other notable individuals <Ul> <Li> First Lieutenant Michael Joseph Blassie, previously interred as the "Vietnam unknown soldier" at the Tomb of the Unknowns, re-interred here after DNA testing positively identified his remains </Li> <Li> Jack Buck, former St. Louis Cardinals baseball announcer </Li> <Li> Peter J. Cook, the last Spanish--American War Veteran to die . </Li> <Li> Franklin Gritts, Cherokee artist and art director of the Sporting News </Li> <Li> Johnnie Johnson, pioneering rock musician </Li> <Li> Robert McFerrin Sr. (1921--2006), Opera singer </Li> <Li> Henry Townsend (1909--2006), Musician </Li> <Li> Three veterans of the American Revolution buried in the Old Post Section: <Ul> <Li> Private Richard Gentry, veteran of the Revolutionary and the Indian Wars . He was present at the surrender of Cornwallis at Yorktown . </Li> <Li> Major Russell Bissell (1756 - 1807), veteran of the Revolutionary and Indian Wars . </Li> <Li> Colonel Thomas Hunt, a "Minuteman" at the Battle of Concord, April 1775 . During the revolution he was wounded at the Battle of Stony Point and Siege of Yorktown . He was also a veteran of the Indian Wars and commanded the 1st Infantry Regiment . </Li> </Ul> </Li> </Ul> </Li> <Li> Other burials of note <Ul> <Li> Mass grave of sixty - one merchant marines and sailors who died in the fire aboard the SS J. Pinckney Henderson on August 19, 1943 . </Li> <Li> Remains of 5 crewmen from B - 36 Bomber 075 lost on the coast of British Columbia, Canada while conducting a training mission on February 13, 1950 Jefferson Barracks National Cemetery </Li> </Ul> </Li> </Ul>

How many graves are in jefferson barracks national cemetery