However, Exterminator won the Derby and Knapp became his lifelong jockey.
[2] Knapp is also well remembered as the jockey aboard the aptly named Upset on August 13, 1919, when he handed the legendary Man o' War his only defeat in the Sanford Memorial Stakes.
In a 1910 history of the feat, the Daily Racing Form wrote that Charles Edward "gave in the Seagate one of the most amazing displays of high-class speed ever witnessed.
"[4] On September 27, 1914, Knapp married Elizabeth Blute, the daughter of trainer James Blute who was the 1907 United States Co-Champion Thoroughbred Trainer by wins tying with James G. Rowe Sr. and Frank Hanlon.
[5] Willie Knapp died at age 84 on October 26, 1972, at the Long Island Jewish Hospital in New Hyde Park, New York.