I agree with David. I also wonder if he could have had the job of postmaster with the GPO if he was French, although he might have been naturalised. Have you tried Post Office records and/or FIBIS?Judith
Hi,Are you sure that he was a native of France ? Reginald doesn't sound French at all.
He was buried in Calcutta by the United Free Church of Scotland, so it might be worth looking for him at ScotlandsPeople.