Oliver Lewis.
Diane Crump rode Fathom in the 1970 Kentucky Derby
There was no Kentucky Derby in 1832. Its first run was in 1875.
The 1981 Derby winner was Pleasant Colony ridden by Jorge Velasquez.
Oliver Lewis [1856 - 1924] was the first African American jockey to ride in the Kentucky Derby. In fact, he rode the blood-red chestnut Aristides in the very first Derby. On that afternoon of May 17, 1875, horse and jockey rode to victory.
Diane Crump in 1970 rode Fathom
1975 Jacinto Vasquez rode Foolish Pleasure in the Kentucky Derby.
Jockey Linus McAtee rode 'Whiskery' to victory in the 1927 Kentucky Derby.
Thirteen of the 15 jockeys who rode in the first Kentucky Derby were black; young servants who cared for the racehorses owned by white men. 12 of the first 16 Derby winners were black.
Calvin Borel
Jockey Kent Desormeaux rode 'Real Quiet' to win the 1998 Kentucky Derby.
John LeBlanc
Jockey Willie Shoemaker rode Ferdinand in the 1986 Derby.