Dr. Fager was an American a thoroughbred

Thoroughbred

The Thoroughbred is a horse breed best known for its use in horse racing. Although the word thoroughbred is sometimes used to refer to any breed of purebred horse, it technically refers only to the Thoroughbred breed...

 racehorse

Horse racing

Horse racing is an equestrian sport that has a long history. Archaeological records indicate that horse racing occurred in ancient Babylon, Syria, and Egypt. Both chariot and mounted horse racing were events in the ancient Greek Olympics by 648 BC...

 who had what many consider one of the greatest single racing seasons by any horse in the history of the sport. "The Doctor" was the only horse who ever held four titles in one year. That year was 1968, and he was voted the Horse of the Year

Horse of the Year

Horse of the Year is an honor given by various organizations worldwide in harness racing and thoroughbred horse racing.Some of the awards include:* Australian Champion Racehorse of the Year* Breeders' Cup World Championships Poll* European Horse of the Year...

, champion handicap horse, champion sprinter, and co-champion grass horse.
A bay colt by Rough'n Tumble, Dr. Fager's pedigree and bred by his owner, the Tartan Stable of William L. McKnight

William L. McKnight

William L. McKnight was an American businessman and philanthropist who served his entire career in the 3M corporation, rising to chairman of the board from 1949 to 1966. He founded The McKnight Foundation in 1953....

 (chairman of the board of Minnesota Mining and Manufacturing Co.

3M

3M Company , formerly known as the Minnesota Mining and Manufacturing Company, is an American multinational conglomerate corporation based in Maplewood, Minnesota, United States....

), Dr.