The son of Civil War General and Medal of Honor Recipient Henry Alanson Barnum, Malvern Hill Barnum was named for Malvern Hill, where his father was shot in the hip and wounded. Malvern graduated from the U.S. Military Academy at West Point, Class of 1886. Serving in Cuba in the Spanish-American War, he was himself shot in the hip during the battle of San Juan Hill. He served again in World War I, and retired as a U.S. Army Major General.