The Perrins are of Huguenot descent and came to Ireland in the Willamette Wars moving through Derry and Athlone before setting in Ballnasloe.

There they were Silversmiths and Wine Merchants. Over time many migrated to Dublin where they became prominent in the legal profession.

It is believed that Juan Perons people were originally Perrins from the same French family originally but the name mutated over time. Juan Peron also is descended from the Moranos the Jews expelled from Spain. The Spanish government recently offered citizenship to any descendants thought to number 20 million.

http://en.wikipedia.org/wiki/Juan_Per%C3%B3n