At first took active interest in the business of Platt Bros and became member of Manchester Royal Exchange at age 19 in 1876. Then in 1890s he abandoned business in favour of sport and acquired a villa at Cannes.
Known as 'The Galloping Major'. A book called 'Major James Edward Platt - a biographical sketch' was published by the Tavistock Press which details his sporting achievements. He also was the author of the book “The Thoroughbred Racehorse : Its Breeding and Early Management.”
Probate: Platt, James Edward of 10 Cadogan Square, Middlesex died 26 September 1928 at 17 Park Lane, Middlesex. Probate London 24 November to Elise Platt widow and Alfred Warren Melhuish solicitors. Effects £55936 11s. 7d.