Juan Nelson

Juan Diego Nelson y Duggan, known as Jack Nelson (born 26 May 1891), was an Argentine polo player of Irish descent who was educated at Beaumont College and the University of Buenos Aires. He is listed on the Argentine polo roster for the 1924 Summer Olympics, where Argentina won the gold medal. At the 1936 Summer Olympics he was the non-playing captain of the team and is not listed as a medallist, although it is sometimes said that he was the first Argentine to win two Olympic gold medals. The English Wikipedia article gives his death as 7 August 1985 in Buenos Aires, but Olympedia gives 19 December 1983 and notes that 7 August 1985 was the date his wife died, so this entry leaves the date of death open.