MR. THOMAS COEN of GREAT BARRINGTON, MASSACHUSETTS became interested in the world of purebred dogs at the age of 12 and whelped his first Shetland Sheepdog litter in 1964 while still in high school on Long Island. Over the past 50 years “Macdega” has bred or owned seven national specialty best of breed winners, eight all-breed best in show winners, and more than 20 register of merit producers, including the breed’s all-time top sire. In 1970, he became a professional handler. In 2000, he retired from handling and received his judges license.  He judges all Herding breeds and Dachshunds. Mr. Coen has judged best of breed at the Collie Club of America and American Shetland Sheepdog Association national specialties. He has judged and given seminars in Brazil, Canada, China, Denmark, Japan, and Norway. This is his first Westminster judging assignment.