Ok,
I have put this question up on the Great war forum, and here's why. It does say on Wiki that they joined the 10Bn CEF. This Battalion was made up primarily from (Not the Calgary Highlanders) the Calgary Rifles and the Royal Winnipeg Rifles, therefore I do not know why any of them would be kilted. Hopefully someone on the other forum can clear this up. The 10th CEF WAS perpetuated by teh Calgary Highlanders which were given that designation I believe during the 1936 reorganization of the Canadian military. IN between wars they were know as the "Calgary Regiment". On the history pages of the Calgary Highlanders all the images of the 10th CEF show non kilted members. SO who knows maybe we can solve this conundrum
ALTHOUGH...I do LOVE the scene of the kilted Canadian signaling the jump off by kicking the soccer ball into no man's land!!
Cheers,
Chad