A product of the very first crop of one of America's foremost stallions, Sir Archy, Lady Lightfoot was almost certainly his best daughter.
Lady Lightfoot was bred by John Tayloe III and foaled at Belair Stud in Maryland.
One of the few races Lady Lightfoot lost was to one of America's greats, American Eclipse.
On October 15, 1821 at the Union Course on Long Island, New York when Lady Lightfoot was nine, American Eclipse at age 7 beat her in straight heats.
Several of her foals achieved fame, especially her great daughter, Black Maria by her old rival American Eclipse.