Organized in the USA in 1879 for Catholic males between 16 and 65. It still exists although apparently there are no units in Canada.
The Provincial Commanderie of the RC Union of the Knights of St John was incorporated 1894 May 261
The local unit was called a Commandery.
Click for a list of Commanderies in Ontario
Click for a list of Ladies Auxillaries in Ontario
References:
Schmidt p187
(1) Archives of Ontario, RG 55-8, box 5, file 296