The US team in Melbourne 1956 Olympic Games. Seating L-R: Wally Wolf, Ron Severa, Don Good, Bill Kooistra, Bob Frojen, Jim Gaughran. Standing L-R: San Greller, Bob Hahn, Sam Kooistra, Bob Hughes, Bill Ross, Bob Horn and Neill Kohlhase. Bob Hughes was the first American athlete since Johnny Weismuller to compete in two different Sports in the same Olympics. Hughes was the World record holder in the 100-meter breastroke. Another incredible athlete who participated in the 1956 Olympics was Wally Wolf. Wolf was a two time Olympian swimmer (1948-1952) and a two time Olympian in Water Polo (1956 and 1960). The US team finished fifth in Melbourne, loosing by one goal to both Italy and Germany.
Source: The history of USA Water Polo in the Olympic Games