MacKenzie Miller

by Cathy Riccio and Jennie Rees Joanne McNamara--the first to be dubbed by the turf media as 'Exercise Rider to the Stars' for the long list of champions and world-class horses she rode in morning training--passed away this past Sunday in Ocala, Fla., after a short battle with cancer. She was 67. Working for Hall of Fame trainer MacKenzie Miller and Rokeby Stables in her first racetrack job, she galloped her barn favorite Rokeby Rose, a multiple stakes winner who also became a prominent broodmare, producing Kentucky Oaks winner Silverbulletday....