The Grand National wonderous days when the Topham family owned substantial tracts of land around Aintree and had been involved with the management of the course since the early years of the Aintree Meeting. In 1949 Lord Sefton sold the course to the Tophams who appointed ex-Gaiety Girl Mirabel Topham to manage it. Mrs Topham built a new track within the established grand national racecourse and named it after Lord Mildmay, a fine amateur jockey and lover of the Grand National. The Mildmay course opened in 1953, the same year as the motor circuit which still encircles the track.