The West Yorkshire town of Halifax was dominated by textile mills in the 19th century. Crossley Carpets made carpets which were exported around the world. What is less well known is that Edward Crossley and his employed assistant astronomer Joseph Gledhill had an observatory with the largest reflecting telescope in England. The two astronomers made massive contributions to the study of astronomy and after their deaths, Crossley’s two big telescopes, the 36 inch Crossley reflector and the 9.3 inch Cooke refractor, continued to be used in astronomical research around the world.