Wolfgang in addition to the above note I googled on to Irish Records in Olympics and a very informative sight gave the Irish born participants who represented various nations in the Games, this was before 1924 when Ireland was affiliated to the Games.
The countries they represented were Britain, USA, Canada,and South Africa winning a total of 24 Gold medals.
Look up the early games and you will find the Hammer event was completely taken over by Irishmen representing the USA, the oul memory is still working that Marathon winner was a County Antrim man named Kennedy McArthur.
The 49th placing would rocket up if you included the above winners.