Thanks Alan. Yes, the Captain title did draw my attention to him as it was unusual round here (not many officers). He attended Sedbergh public school and Haileybury Imperial Service College (Herts), so there may have been some sort of cadet force there, more likely Sedbergh; otherwise he was mostly in Nigeria.
Thanks Shaun, the fact they are Yorkshire newspapers suggests he may have been in Yorkshire 1916-18. And yes an honorary Captain.