[1] Known by the nickname Harry, Blaylock's death as reported by the San Francisco publication Breeder and Sportsman said that he had been one of the "most prominent jockeys on the American turf and stood high for skill and integrity.
"[3] Harry Blaylock began his career in Canada riding for fellow Hamilton, Ontario native and a future Canadian Horse Racing Hall of Fame trainer, Charles Boyle.
He went on to be a contract rider in the United States for a number of prominent racing stable owners including another fellow Canadian Edward Corrigan, future U.S.
[7] Harry Blaylock had three mounts in the Kentucky Derby with his best result in the 1887 edition when he finished fourth aboard Banburg owned by James D.
[9] Some of Blaylock's important race wins in the United States were the 1877 Manhattan Handicap, the 1884 Saratoga Cup and in 1887 the inaugural running of the Latonia Oaks as well as that year's prestigious Travers Stakes.