When history buff Garrett Redmond bought a filly out of the Colonial Affair mare Jefferson's Secret, he thought he had the perfect name: Sally Hemings. Hemings was a slave of President Thomas Jefferson and might have been his mistress. Although the exact nature of their connection is in dispute, Hemings and Jefferson are thought by some historians to have had a decades-long relationship and at least one child - and possibly more - together. "To name a horse after someone is an honor," said Redmond, owner of Ballycapple, a farm in Paris. "I have a horse here named after my...