A highly successful businessman, Joseph E. Tomlinson had interests in shipping and was a shareholder in Hollywood's MGM Studios.
[2] The couple maintained a home in Oakville, Ontario as well as a mansion in the Bahamas known as "High Tor" which they purchased from Sir Oliver Simmonds in 1963.
[3] Conditioned for racing by trainer Richard Townrow, at age three Chain Reaction ran seventh in the 1953 Queen's Plate at Old Woodbine in Toronto.
[4] In the edition that marked the Centennial of the Quebec Queen's Plate, only four horses raced against Chain Reaction.
In winning the 1953 Durham Cup Handicap, Chain Reaction set a track record for a mile and a quarter.