 Day's successes for the Duke included the 2000 Guineas winner Vauban and the classic winning fillies Siberia and Scottish Queen.All three of these horses were ridden by George Fordham who was the stable jockey at Danebury for several seasons, taking over the role previously occupied by the trainer's brother Alfred.Day was also closely associated with the Marquess of Hastings, a young aristocrat who had already spent most of a huge inheritance by the time Day trained his filly Lady Elizabeth in 1866.