Have you solved your problem with Gilbert William & Frank. I don't know if any of this information will help but it seems from my searches that Gilbert William had a brother Arthur Henry born 1884 and 1882 respectively in Colwall of Thomas and Mary Willoughby (Thomas' parents were William and Elizabeth Nash). Both Gilbert and Arthur are living in Darton Yorkshire in the 1901 Census, Gilbert is listed as a Colliery Horse Driver Underground and Arthur as a Horseman on a farm. Have no Frank Eacock on my research so maybe you could fill me in there. Any information you can exchange would be greatly appreciated.