Sir Dennis Weatherstone KBE (29 November 1930 – 13 June 2008) was the former CEO and Chairman of J. P. Morgan & Co. Born in London, he attended North Western Polytechnic. In 1946, at age 16, he was hired as a bookkeeper and was quickly promoted to the foreign exchange trading desk at the Guarantee Trust Company, a predecessor firm in London. Weatherstone rose through the ranks, becoming Morgan's Chairman and CEO in 1991. He retired from J. P. Morgan in 1995 and was succeeded by Douglas "Sandy" Warner III.