About Michael Plumb
John Michael Plumb is an American equestrian and Olympic champion who competes in the sport of three-day eventing. He holds the title of the US Olympic competitor who has competed in the greatest number of Olympics, winning two team gold medals, three team silvers and one individual silver. Throughout his career he competed for the United States in several other Pan-American Games, and won three gold medals, including an individual gold in 1963 and team golds in 1963 and 1967. At these Games, he became the first rider ever to win a medal on a horse that he had never previously ridden in competition. In 1970, when Jack le Goff became coach of the United States eventing team, Plumb was one of only three active US riders with international experience in the sport.
Biography source: Wikipedia. The profile adds birthday-specific historical context from the Celebs Birthday Today editorial database.