Mrs. Richard Hyde, Manuela Hudson Vanderbilt and Alfred Gwynne Vanderbilt at the Santa Anita Park Turf Club, Arcadia, 1938 Description: Santa Anita Park, the oldest thoroughbred racetrack in Southern California, opened on December 25, 1934. Date: December 31, 1938 Resource Type: still image Collection: OpenUCLA Collections Los Angeles Times Photographic Collection