Peter,
thanks for the reply. I had similar ideas to you, in that the two guys with bandoliers looked like British Yeomanry to me, the maple leaf collar badges obviously knocks that out. Canadian Mounted Rifles sounds plausible.
Maybe i didn't explain myself very well, I am back to original I.D. of this photo - these 3 are now more likely to be my relations, the newspaper report is about 3 men from the town not related to me, 48th Highlanders who also came to visit. So i can now rule that article out.
Thanks for your time. If anyone else has any more details on the guys in the photos regiment etc. it would be great.
Cheers,
Smithy