Many thanks for this additional information. There doesn't seem to be a photograph of Frank, although I have a tantalising memory of a photograph of a soldier in uniform in my grandfather's house at Cinderford when I visited as a child. Frank was the only family member to serve in the First World War, but no other living relation knows of the existence of a photograph. A pity, but through the good offices of those who have contributed to this site, I have gathered a good deal of additional information about him.
Christopher Dent