Daniel Carroll was an Olympic Gold Medalist on the Australian rugby team prior to World War I. His team toured the United States in 1912 and he remained here to study at Stanford University. After serving in the U.S. Army in World War I, he was a player/coach of the U.S. team, winning a Gold Medal in 1920. He is one of fewer than a dozen athletes to win Olympic Gold Medals with different countries. He coached the U.S. Rugby Team again in the 1924 Olympics, once again earning a Gold Medal.