Marshall is an English surname that originated from the Old French word “mareschal,” meaning a horse servant or farrier. The name was initially used as a title for a person in charge of horses in medieval times, but later evolved to denote a high-ranking military officer. Famous Marshalls include Thurgood Marshall, the first African American Supreme Court Justice, and George Marshall, the US Army General and Secretary of State who developed the Marshall Plan to rebuild Europe after WWII.