Wilson, Thomas Bright
Thomas Bright Wilson (1843-1915) was the inventor of the chess clock (stop clock), with the advice of Henry Blackburne. He lived in Manchester England and was secretary of the Manchester Chess Club. The first major tournament to use the chess clock was London, 1883 (won by Zukertort). It consisted of two balanced clocks on a seesaw beam so that when one was tilted, it stopped and the other started.