Alonzo Clayton was an American jockey in Thoroughbred horse racing described by author Edward Hotaling, as "one of the great riders of the New York circuit all through the 1890s" and who holds the record as the youngest jockey to ever win the Kentucky Derby.

The Travers Stakes is an American Grade I Thoroughbred horse race held at Saratoga Race Course in Saratoga Springs, New York. It is nicknamed the "Midsummer Derby" and is the third-ranked race for American three-year-olds according to international classifications, behind only the Kentucky Derby and Belmont Stakes. First held in 1864, it is the oldest stakes race in the United States specifically for 3-year-olds, and was named for William R. Travers, the president of the old Saratoga Racing Association. His horse, Kentucky, won the first running of the Travers. The race was not run in 1896, 1898, 1899, 1900, 1911, and 1912.