American Classic Race wins:Kentucky Derby (1892)Alonzo Clayton (January 4, 1876 – March 17, 1917) 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.

Lonnie Clayton was given a job as a stablehand and exercise rider for the Baldwin stable then the following year he moved east to the Clifton Race Track in New Jersey where in 1890 the fourteen-year-old began his professional riding career.

Immediately successful, in 1891 at Morris Park Racetrack in The Bronx, New York, Clayton won the important Champagne Stakes aboard Bashford Manor Stable's two-year-old colt, Azra.

He captured back-to-back runnings of the Kentucky Oaks in 1894 and 1895, the latter a year in which he won 144 races and finished in the money sixty percent of the time.

As he was weighing out, someone said something that provoked the jockey to strike a spectator, Henry Bolomey, across the face with the butt end of his riding whip.

When Clayton returned to the turf at New York's Aqueduct Racetrack, the Queens County Deputy Sheriff arrested him on April 22, 1901, on a body execution for non-payment of a civil judgment, just as he was about to ride The Golden Prince in the fifth race.

[9] Clayton sold his house on July 12, 1900, and quickly paid off his back real estate taxes, the liens, and the judgment he owed his brother and another Little Rock businessman.

He also sold his North Little Rock commercial building on April 13, 1901, just nine days before his eventual arrest for non-payment of the judgment to Henry Bolomey.