I came across this photo online, and assume that there's no copyright.
It's said to be Tibshelf Colliery St John Ambulance men on their way to South Africa, but as all but one are wearing a medal I would guess that the photo was taken after Saturday 1st March 1902. Twenty-one men from both the Tibshelf Corps and the Birchwood Corps received their war medals on the evening of that day, and a twenty-second man, of the Tibshelf Corps, was to receive his medal from the King at a later date. I don't know how many were from just the Tibshelf Corps; perhaps it was fifteen and the man on the left was Private Arthur England, of Newton, a village near Tibshelf, but a member of the Tibshelf Corps.
Was there a regulation regarding the positioning of medals? Those in the front rank are all over. That makes me think the photo might have been taken within a day or two of the medals being given out.