Unraced. Sir Thomson was Champion at Harrisburg & Upperville, Reserve Champion at Washington & The Garden, and Best Young Horse at Devon at age 2. As a breeding stallion, Sir Thomson was highly popular amongst breeders who came in droves each season to cover their mares with this incredible stallion. Died 1993. Article: http://equestriancoachblog.com/sir-thomson-top-conformation-hunter-1-ranked-sire-of-international-hunter-futurity-winners/