George Johnstone Stoney
George Johnstone Stoney FRS was an AngloIrish physicist. He is most famous for introducing the term electron as the fundamental unit quantity of electricity. He had introduced the concept, though not the word, as early as 1874 and 1881, and the word came in 1891. He published around 75 scientific papers during his lifetime.
Stoney was born at Oakley Park, near Birr, County Offaly, in the Irish Midlands, the son of George Stoney and Anne Blood . The Stoney family is an oldestablished AngloIrish family. He attended Trinity College, Dublin, graduating with a B.A. degree in 1848. From 1848 to 1852 he worked as an astronomy assistant to William Parsons, 3rd Earl of Rosse at Birr Castle, County Offaly, where Parsons had built the worlds largest telescope, the 72inch Leviathan of Parsonstown. Simultaneously Stoney continued to study physics and mathematics and was awarded an M.A. by Trinity College Dublin in 1852.
Source: Wikipedia