Northern Dancer was a Thoroughbred that, in 1964, became the first Canadian-bred horse to win the Kentucky Derby. After being retired from racing, he became one of the most successful sires of the 20th century. He is considered a Canadian icon and was inducted into the Canadian Sports Hall of Fame in 1965. Induction into the Racing Hall of Fame in both Canada and the United States followed in 1976. As a competitor, The Blood-Horse ranked him as one of the top 100 U.S. Thoroughbred racehorses of the 20th century. As a sire of sires, his influence on the breed is still felt worldwide.
Nearco was an Italian-bred Thoroughbred racehorse described by Thoroughbred Heritage as "one of the greatest racehorses of the Twentieth Century" and "one of the most important sires of the century." He was unbeaten, winning 14 races at distances from 1000m to 3000m, including the Derby Italiano and Grand Prix de Paris. He was then sold for a record amount to Martin H. Benson and stood stud in England, where he became the patriarch of several of the most dominant sire lines in Thoroughbred history.
Regret was a famous American thoroughbred racemare and the first of three female horses to ever win the Kentucky Derby.
Blue Larkspur (1926–1947) was a bay Kentucky-bred thoroughbred race horse. He was inducted into the National Museum of Racing and Hall of Fame in 1957, and ranks Number 100 in The Blood-Horse's top 100 U.S. thoroughbred champions of the 20th Century. Of the 127 stakes winners bred by Colonel Edward Riley Bradley at his Idle Hour Stock Farm in Lexington, Kentucky – which includes Bimelech out of La Troienne – Blue Larkspur was considered the Colonel's finest horse.
La Troienne (1926–1954) was one of the most famous and influential Thoroughbred broodmares in twentieth century America. She produced 10 winners including two Hall of Fame inductees while at stud, while her daughters in turn produced many notable offspring. In 2000, pedigree expert Janeen Oliver designated her as the taproot of family 1-x, a designation that was implemented by the Pedigree Online Thoroughbred Database in 2003. Recent matrilineal descendants include 2003 Horse of the Year Mineshaft, Japanese Triple Crown winner Contrail (2020), Kentucky Derby winners Smarty Jones (2004) and Super Saver (2010), Belmont Stakes winner Essential Quality (2021), and Sussex Stakes winner Alcohol Free (2021).
Halo was an American Thoroughbred racehorse and an important Champion sire.
Hail to Reason was an American Thoroughbred racehorse and an influential sire. In a racing career cut short by injury, he was named the American Champion Two-Year-Old Colt of 1960 after winning seven stakes races including the Hopeful Stakes. He later became a leading sire whose offspring included 1972 Epsom Derby winner Roberto and leading sire Halo, who in turn sired 1989 Kentucky Derby and Preakness Stakes winner Sunday Silence.
Tosmah (1961–1992) was a champion Thoroughbred race horse. She was the leading American filly of her generation at both two and three years of age.
Peace Chance was an American Thoroughbred racehorse who won the 1934 Belmont Stakes, the third leg of the U.S. Triple Crown series.
Natalma was an American-bred Thoroughbred racehorse best known as the dam (mother) of the most important sire, and sire of sires, of the late 20th Century, Northern Dancer. She also established a highly influential female family, which has produced other leading sires Machiavellian and Danehill, plus numerous other stakes winners. Natalma was inducted into the Canadian Horse Racing Hall of Fame in 2007.
Mahmoud (1933–1962) was a French-bred, British-trained Thoroughbred racehorse and sire. In a career which lasted from April 1935 to September 1936 he ran eleven times and won four races. In 1935 he won two of Britain's most important two-year-old races and was officially rated the second-best colt of his generation. In 1936 he won only once from five starts, but this win came in the Derby in which he set a race record which stood for fifty-nine years, and became the third of only four greys to win the race. After being retired from racing he was sold and exported to the United States, where he became a highly successful breeding stallion and was America's Champion sire in 1946.
His Majesty was an American Thoroughbred racehorse and top sire.
Almahmoud (1947–1971) was an American Thoroughbred racemare that was best known as an influential broodmare who produced Natalma and Cosmah.
Heavenly Cause was an American Thoroughbred champion racehorse.
Weekend Surprise was an American Thoroughbred racehorse and dam of 1992 American Horse of the Year A.P. Indy and 1990 Preakness Stakes winner Summer Squall. She was sired by the famous Triple Crown winner Secretariat.
Gen. Duke (1954–1958) was an American Thoroughbred racehorse who won the 1957 Florida Derby.
The Kentucky Broodmare of the Year is selected each year by the Kentucky Thoroughbred Owners and Breeders Association. The title is considered the highest honor an American thoroughbred broodmare can receive, as the majority of American breeding stock resides in Kentucky. It is a subjective vote, as opposed to the title for leading sire in North America that looks strictly at the earnings of the stallion's progeny in the given year.
Pharamond (1925–1952) was an English Thoroughbred racehorse who became a successful sire of Champions in the United States where he was registered as Pharamond II. He was a full brother to Sickle, who also stood at stud successfully in the United States.
Goodbye Halo was an American Thoroughbred racehorse and broodmare. A daughter of the noted sire Halo, she won 10 graded stakes races over a race career spanning from ages two to four. Following her racing career, she was sent to Japan for broodmare duty and most notably produced the sire King Halo.
Mother Goose was an American Thoroughbred racehorse who was named the American Co-Champion Two-Year-Old Filly of 1924. From the 128 runnings of the Belmont Futurity Stakes since its inception in 1888 through 2019, Mother Goose is one of only thirteen fillies to have ever won the event. The Mother Goose Stakes at New York's Belmont Park is named in her honor.
