Thank you all for your information. I'm afraid i have to confess that this is my 2nd visit to a similar subject to one i posted a couple of years ago. The issue i still have is that the James in my tree was, according to his marriage certificate in 1893, a colour sergeant. The certificate also states he was a resident at Richmond Barracks Dublin, although the marriage was in Plymouth, where he was born. The information provide by Andy at the time confirmed the following regiments were based at Dublin around that time and all were posted to S.Africa:
1st bn Scots Guards
1st bn Royal Sussex Regiment (34th)
2nd bn Duke of Cornwall's Light Infantry (46th)
1st bn Royal Munster Fusiliers (101st)
Obviously the DCLI caught my eye on this list, however the record for the James White who was with them was only a Private when he died. It was suggested by a contributor at the time that he could have been busted down the ranks for some reason, as this occasionally happened. But from a Colour sergeant to Private seems a bit extreme considering he'd worked so hard to gain such a reasonably high rank in the first place. Thinking such a drop in rank was unlikely then my thoughts would turn to the Colour sergeant in the Cheshire's which lead me to my original question above. Just to confuse me further, the parents of my James white were from Ireland, although i suspect that is of no consequence.
Just noticed your reply Shaun, whilst running my spell check on the above, and yes that's the one

Regards
Stewart