Wistful, an American racehorse, won at which Louisville, Kentucky Grade 1 stakes race?
Wistful (horse): Wistful (foaled in 1946 in Kentucky) was an American Thoroughbred racehorse. Wistful (horse):  The daughter of Sun Again and granddaughter of Sun Teddy is best remembered for wins in the Kentucky Oaks, the Coaching Club American Oaks, the Black-Eyed Susan Stakes at Pimlico Race Course.
i don't know