Most were built by the Montreal Locomotive Works (MLW) in Montreal, Quebec, and the Canadian Locomotive Works (CLW) in Kingston, Ontario, for the Canadian National Railway (CNR).
Большинство локомотивов строились на заводах компаний Montreal Locomotive Works (MLW) в Монреале, Квебек, и Canadian Locomotive Works (CLW), Кингстон для Canadian National Railway (CNR).