The RCMP weren't the only ones to wear the stetson...many of the Canadian mounted units in the Boer War and the First World War wore them...Lord Strathcona's Horse, the Alberta Dragoons...I have a photo in a book of a Prairie Province mounted unit and an RCMP detachment in France in 1915 -- the RCMP are NOT wearing stetsons, ironically, but the other regiment is.

I really like the "Montana Peak" style in a hat -- but I wear one on a regular basis!

T.