John Perry was born in Garvagh, County Londonderry and was educated at Queen's College, Belfast. He taught at the University of Glasgow and from 1875 to 1879 was Professor of Engineering at the University of Tokyo, Japan. He also taught in South Kensington and was Treasurer of the British Association. He was known as an inventor and a researcher into the properties of electricity.

Born:	14 February 1850
Died:	4 August 1920