Sorry I haven't replied earlier! I note that there is a J. Orrah whom is commemorated in Thornton Dale Church as having lost his life in the 1914-18 War. Could this be one of your ancestors? I also have some limited information on a branch of the Orrah Family in Huddersfield in the mid-1800's. Maybe they could be related? If you can send any more information, maybe I can help you further.