
Adios was a champion harness racing sire. The son of Hal Dale and the mare Adioo Volo, the horse named Adios was born on January 3, 1940, at Two Gaits Farm, in Carmel, Indiana. Trained and driven by Frank Ervin and for a while owned by Harry Warner of Warner Bros. film studio, Adios was a multiple world champion during his racing career. His pacing record at the Shelbyville, Indiana, fair stood for 43 years. Despite his racing success, he is most famous for his offspring, which included Adios Harry.

Bingen (1893–1913) was an American Standardbred horse. A descendant of Hambletonian 10, he is considered one of the most important sires in the development of the modern Standardbred breed.

Bret Hanover was an outstanding American Standardbred racehorse. He was one of only nine pacers to win harness racing's Triple Crown of Harness Racing for Pacers and won 62 of 68 starts. He was the first horse to be voted United States Harness Horse of the Year three times and remains the only pacer to have received that honor.

Dan Patch was a noted American Standardbred pacer. At a time when harness racing was one of the largest sports in the nation, Dan Patch was a major celebrity. He was undefeated in open competition and was so dominant on the racetrack that other owners eventually refused to enter their horses against him. Instead, he ended his racing career performing time trials and traveled extensively on exhibition, earning millions of dollars in purses, attendance gate receipts and product endorsements. Dan Patch broke world speed records at least 14 times in the early 1900s. In 1905, he set a world's record for the fastest mile by a harness horse that stood unmatched for over 30 years. Unofficially, Dan Patch broke this record in 1906 with a clocking of 1:55. He died on July 11, 1916. His owner Marion Willis Savage died just one day later.

Fast Clip was a Standardbred champion harness racing horse. He is considered one of the outstanding horses trained and driven by 2016 Harness Racing Hall of Fame inductee, Bruce Nickells.

Goldsmith Maid was a prominent Standardbred racemare in the 1870s that was called the "Queen of the Trotters" and had a harness racing career that spanned 13 years. Her last race was won at the age of 20 against a much younger horse named Rarus. She was inducted into the Harness Racing Hall of Fame in 1953.

Greyhound was a grey Standardbred gelding by Guy Abbey out of Elizabeth by Peter the Great. Born in 1932, Greyhound was the outstanding trotting horse of his day and arguably the most outstanding in the history of the sport. He was nicknamed "The Great Grey Ghost" and "Silver-skinned Flyer." In 1935, he won the Hambletonian race and in 1938 he lowered the record time for trotting the mile to 1:55¼. This record stood until 1969.

Hambletonian 10, or Rysdyk's Hambletonian, was an American trotter and a founding sire of the Standardbred horse breed. The stallion was born in Sugar Loaf, New York on 5 May 1849. Hambletonian has been inducted into the Immortals category of the Harness Racing Hall of Fame.

Jay Eye See was a harness racer who is known for breaking the trotting record in 1884, and for breaking the pacing record in 1892. Jay Eye See was owned by manufacturer Jerome Case, who named the Case Jay-Eye-See Brougham automobile after him.

Lou Dillon was a Standardbred trotting horse. She was the first trotter to trot a mile in under 2:00, which she completed at Memphis in 1903.

McKinney (1887–1917) was an American Standardbred horse. A descendant of Hambletonian 10, he is considered one of the most important sires in the development of the modern Standardbred breed. McKinney was 15.2 hands high.

Nancy Hanks was an undefeated Standardbred trotting mare named for Abraham Lincoln's mother. She was the first 2:05 trotter in harness-racing history.

Peter The Great (1895–1923) was an American Standardbred horse. A descendant of Hambletonian 10, he is considered one of the most important sires in the development of the modern Standardbred breed.

Rosalind was a champion trotting mare who won the 1936 Hambletonian Stakes, set two world records and was elected to the Harness Racing Hall of Fame in 1973. Foaled on May 5, 1933, she was sired by Scotland (1:59¼); her dam was Alma Lee (2:04¾), whose sire was Lee Worthy (2:02½). Scotland was sired by Peter Scott, who was sired by Peter The Great, who was sired by Pilot Medium, who was sired by Happy Medium, who was sired by Hambletonian 10. Alma Lee was also a great-great-great-great-granddaughter of Hambletonian 10.

Star Pointer (1889–1910) was the first Standardbred race horse to complete a mile in less than two minutes. He was a pacer by Brown Hal out of Sweepstakes.