Earl McCready	41/06
Also holds the New Zealand version.
Nanjo Singh	42/02/12	Toronto, ON
Whipper Billy Watson	42/04/30	Toronto, ON
John Katan	42/10/01	Toronto, ON
Earl McCready [2]	42/11/11	Toronto, ON
John Katan [2]	42/12/03	Toronto, ON
Vacant on 43/01/28.
Whipper Billy Watson [2]	43/01/28	Toronto, ON
Defeats Nanjo Singh when Katan no-shows a scheduled defense; defeats Katan on 43/02/25.
Jack Claybourne	43
Whipper Billy Watson [3]	43/03/18	Toronto, ON
Yvon Robert	43/05/27	Toronto, ON
Title help up on 43/06/03 after Yvon Robert defeats Watson by DQ in Toronto, ON.
Whipper Billy Watson [4]	43/06/10	Toronto, ON
Defeats Robert in rematch.
Earl McCready [3]	43/07/22	Toronto, ON
[...]
Whipper Billy Watson [5]	44/07<
Frank Sexton
Whipper Billy Watson [6]	44/10/26	Toronto, ON
Vacant on 47/02/21 when Watson wins NWA World title.
Nanjo Singh [2]	48/05/13	Toronto, ON
Whipper Billy Watson [7]	48/06/03	Toronto, ON
Fred Atkins	49/03/03	Toronto, ON
Whipper Billy Watson [8]	49/08/02	Hamilton, ON
Yvon Robert [2]	49/10/06	Montreal, QC
Whipper Billy Watson [9]	49/11/17	Toronto, ON.
Yvon Robert [3]	50/01/25	Montreal, QC
Whipper Billy Watson [9]	50/10/12	Toronto, ON
Vacant on 56/03/15 when Watson wins NWA World title.
Pat O'Connor	56/03/29	Toronto, ON
Defeats Lord Athol Layton
Gene Kiniski	57/05/02	Toronto, ON
Whipper Billy Watson [10]	57/06/06	Toronto, ON
Gene Kiniski [2]	59/04/17	Toronto, ON
Whipper Billy Watson [11]	59/06/18	Toronto, ON
Title retired in 67.