Thanks, everybody, for all your help. It looks as though he stayed around the Winnipeg area most of his life. Is it possible that the Burial Order would confirm any more, and is it possible to get copies of these?
Jacquie, you are absolutely spot on. Elsie Edith came back to UK with Reg in 1916, but didn't go back with him in 1919 - whether it was a formal splitting-up or whether she was due to follow when he had set up a home for them I don't know. Elsie did come out to Kenya a couple of times to visit our family when we were living there, from 1947 to 1963, and died in Somerset in 1958.
Reg's brothers have been much easier to track, particularly Bernard Vann, who won a VC in the First World War.
Is there likely to be any way of discovering Reg's employment history?
Thanks again for all your help.
Best wishes
Colin