That is a very good point you make regarding buttons, I do not know if it is the same person, he might have simply placed his hat on his head and just not noticed it was back to front, again I just don't know, I would say the first photo shows a regular in an MI Coy, the second could be almost any British or Colonial unit!
Conductor wrote: Sorry but I can't agree that the negative is the wrong way round, if it were then his tunic buttons would be on the wrong side!!
Do yoy think that the photos are of the same person? The first one when he was a recruit in South Africa and the second, mounted on a horse, when he was a seasoned soldier in India?