Olympic equestrian who competes in three-day eventing. He competed in every Olympic Games starting in 1960 until 1984 and made his last appearance in 1992. He won two golds in that time.
His first international competition came in 1959 when he competed in the Pan American Games in Chicago.
He was a silver and bronze medalist in World Championship events.
He married and divorced Donnan Sharp Plumb and together they had three sons.
He was inducted into the United States Olympic Hall of Fame like Sugar Ray Leonard.