Hailee is related to Peter McCue, born in 1895 in Petersburg, Illinois. Peter McCue was so fast that his owner, Sam Watkins, secretly registered him as a thoroughbred, so that he could compete against them. He made amazing speed records and passed his speed to his children. Hailee is related to Peter McCue multiple ways, through his children and grand-children, Billy the Tough, Buck Thomas, AD Reed, Hickory Bill, John Wilkens, Harmon Baker, Billy Anson, Badger, Midnight, Midnight Jr, and Billy Anson. Peter McCue was inducted in the AQHA Hall of Fame in 1991! He was so famous that songs were even written about him! You can read more about him and his famous children at the following links:
He was even written about in Western Horseman magazine: