 Ross's stable in Agincourt, Ontario and a year later bought Sweepster from Harry F. Sinclair's Rancocas Stable in Jobstown, New Jersey.Sweepster became one of the most successful sires in Canada, siring King's Plate winners Monsweep and Goldlure.Harry Hatch became one of the dominant owners and breeders of Thoroughbreds in Canada during the 1930s and 1940s.