Joe Brunetti & Guy Brunetti and Ivan Kalmikoff & Karol Kalmikoff wrestle for the vacant title on 58-02-07 in Calgary, AB to a no-contest when the ropes come loose from the turnbackles (The Calgary Herald, 58-02-08).
Joe Brunetti & Guy Brunetti	1958-02-21	Calgary, AB
Defeat Chico Gracia & Gene Kiniski.
Ivan Kalmikoff & Karol Kalmikoff	1958-02-28	Calgary, AB
Joe Brunetti & Guy Brunetti [2]	1958-05-16	Calgary, AB
Bill Miller & Ed Miller	1958-05-30	Calgary, AB
Joe Brunetti & Guy Brunetti [3]	1958-06-20	Calgary, AB
Defeat Bill in a handicap match after Ed is injured by Danny Plechas & Jim Wright right before the match.
Reggie Lisowski & Stan Lisowski	1958 *
Billed as champions on arrival for having won the title from the Brunettis "in Eastern Canada during the summer" (The Albertan, 58-09-26).
Chris Tolos & John Tolos	1958-10-10	Calgary, AB
George Scott & Sandy Scott	1958-11-01	Calgary, AB
Maurice Vachon & Paul Vachon	1959-01-30	Calgary, AB
Shag Thomas & Mighty Ursus	1959-03-27	Calgary, AB
Maurice Vachon & Paul Vachon [2]	1959-04-17	Calgary, AB
George Scott & Sandy Scott [2]	1959-05-01	Calgary, AB
Also hold Western Canadian Title as of 59-07-08 (The Leader-Post, Regina, SK, 59-07-08); vacant after the Scotts leave the area in 59-07.
Al Mills & Don Kindred	1959-12-11	Calgary, AB
Defeat Luther Lindsay & Maurice Lapointe; still champions as of 60-01-01.
Don Kindred & John Foti	1960-02
Mills is replaced by Foti due to extended illness (The Calgary Herald, 60-03-08); also billed as IWA champions.
Oattem Fisher & Luther Lindsay	1960-04-15	Calgary, AB
Tarzan Tourville & Mighty Ursus	1960-05-27	Calgary, AB
Jim Wright & Gypsy Joe	1960-07-01	Calgary, AB
Still champions as of 60-08-27; vacant in 60.
Joe Brunetti & Guy Brunetti [4]	1961-02
Billed as champions on arrival (Calgary Herald, 61-02-11); also billed as IWA champions; leave the area in late 61-03.
Nick Bockwinkel & George Scott	1961-11-24	Calgary, AB
Win the tournament (The Calgary Herald, 61-11-25) for "a brief hold" on the title (The Calgary Herald, 61-12-21); still champions as of 61-12-01.
Tiny Mills & Black Jack Daniels	1961-12
Sometime between 61-12-02 and 61-12-05.
Alberto Torres & Ramon Torres	1961-12-08	Calgary, AB
Still champions as of 61-12-21.
Nick Bockwinkel & George Scott [2]	1962-01-18<
Vacant in 62-02 when Bockwinkel leaves the area.
Alexis Bruga & Aldo Bogni	1962-05-03	Regina, SK
Defeat John Foti & Bill Wright in tournament final.
Sandor Kovacs & Czaya Nandor	1962-05-11	Calgary, AB
Repeated(?) on 62-05-17 in Regina, SK; still champions as of 62-09-05; vacant in 62.
Ron Etchison & Dominic Bravo	1963-01-18	Calgary, AB
Defeat Riotcall Wright (Jim Wright) & Mike Sharpe for the vacant title.
Riotcall Wright (Jim Wright) & Luke Graham	1963
Ron Etchison & Dominic Bravo [2]	1963-02-14	Regina, SK
Jerry Graham & Riotcall Wright	1963-02-28	Regina, SK
Ron Etchison & Dominic Bravo [3]	1963-03-20<
Riotcall Wright & The Destroyer	1963-03-22	Calgary, AB
Ricky Waldo & Karl von Schober	1963-04-12	Calgary, AB
Jim Wright & The Destroyer [2]	1963-04
Still champions as of 63-05-10.
[...]
George Scott & Sandy Scott [3]	1963-10-18<
Also billed as NAWA Title.
Art Neilson & Stan Neilson	1963-11-26	Edmonton, AB
Repeated on 63-11-27 in Saskatoon, SK and on 63-11-29 in Calgary, AB.
George Scott & Sandy Scott [4]	1963-12-06	Calgary, AB
[...]
Fabulous Kangaroos: Al Costello & Roy Heffernan	1964-10-21<
Still champions as of 65-02-26.
[...]
Bobby Christy & Jerry Christy	1967-01-19<
Kurt Von Steiger & Karl Von Steiger	1967-05-12<
Also billed as North American Title.
Bobby Christy & Jerry Christy [2]	1967-06-16	Calgary, AB
Held up after the match against Bob Sweetan & The Beast on 67-07-11 in Calgary, AB.
Bob Sweetan & The Beast	1967-07-12	Calgary, AB
Win rematch; still champions as of 67-08-23.
[...]
Bobby Christy & Jerry Christy [3]	1968-01-15<
Still champions as of 68-04-13.
[...]
Paul Leduc & Jos Leduc *	1969-01-03<
[...]
Bob Sweetan & The Beast [2]	1969-03
Claim the title.
Bud Osborne & Ray Osborne	1969-03-29	Edmonton, AB
Bob Sweetan & Fred Sweetan	1969-04-01	Edmonton, AB
Bud Osborne & Ray Osborne [2]	1969-04-18	Calgary, AB
Still champions as of 69-10-09.
[...]
Bobby Christy & Jerry Christy [4]	1969-12-16	Edmonton, AB
Defeat Bill Dromo & Gil Hayes; may repeat on 69-12-19 in Calgary, AB.
Gil Hayes & Bill Dromo	1970-02-13	Calgary, AB
Bobby Christy & Jerry Christy [5]	1970-03-06	Calgary, AB
Gil Hayes & Bob Sweetan	1970-06-26	Calgary, AB
Bobby Christy & Jerry Christy [6]	1970-08-14	Calgary, AB
Bob Sweetan & Paul Peller	1970-11-20	Calgary, AB
Bob Lueck & Emile Dupre	1971-02-26	Calgary, AB
Bob Sweetan & Paul Peller [2]	1971-03-05	Calgary, AB
Sweetan vacates in 71-04 (The Calgary Herald, 71-04-16).
Tiger Joe Tomasso & Earl Black	1971-06-18<
Win touranment sometime after 71-05-27; held up after a match against Dan Kroffat & Bill Cody on 71-07-14 in Saskatoon, SK.
Dan Kroffat & Bill Cody	1971-07-21	Saskatoon, SK
Win the rematch.
Tiger Joe Tomasso & Earl Black [2]	1971-08-06	Calgary, AB
Michel Martel & Danny Babich	1971-10-01	Calgary, AB
Repeated on 71-10-02 in Edmonton, AB.
Chin Lee & Sugi Sito	1971-10-15	Calgary, AB
Tiger Joe Tomasso & Dave Ruhl	1972-01-21	Calgary, AB
Chin Lee & Sugi Sito [2]	1972-02-04	Calgary, AB
Geoff Portz & Jeff Atcheson	1972-04-24	Lethbridge, AB
"Monday in Lethbridge" (The Leader-Post, Regina, SK, 72-04-28); Atcheson leaves the promotion to join the training camp of CFL team the Hamilton Tiger-Cats in 72-05.
[...]
Tiger Joe Tomasso & Gil Hayes	1972-05-09<
Vacant when Hayes leaves the area in 72-07 (sometime after 72-07-06).
Tor Kamata & Sugi Sito	1972-09-15	Calgary, AB
Defeat Dan Kroffat & Lenny Hurst; Sito leaves the area in early 72-10.
[...]
Danny Kroffat & Lennie Hurst	1972-11-10<
Tiger Joe Tomasso & Gil Hayes [2]	1972-11
Possibly on 72-11-18 in Edmonton, AB.
George Gordienko & Super Hawk	1972-12-01	Calgary, AB
Michel Martel & Danny Babich	1972-12-08	Calgary, AB
Dan Kroffat & Lennie Hurst	1973-01-19	Calgary, AB
May be repeated next day in Edmonton, AB.
Michel Martel & Danny Babich [2]	1973-02-09	Calgary, AB
Gino Caruso & Bill Cody	1973-03-18	Calgary, AB
Still champions as of 73-04-06; Caruso & Carlos Belafonte (Carlitos Colón) defend the title on 73-04-13 in Calgary, AB; vacant in 73-04.
Samoans: Afa Anoa'i & Sika Anoa'i	1973-05-25	Calgary, AB
Defeat Chati Yokouchi & Yasu Fuji in tournament final.
Chati Yokouchi & Yasu Fuji	1973-06-01	Calgary, AB
Danny Kroffat & Bill Cody	1973-06-15	Calgary, AB
Gil Hayes & Benny Ramirez	1973-08-03	Calgary, AB
Samoans [2]	1973-08-11?	Edmonton, AB?
Chati Yokouchi & Yasu Fuji [2]	1973-09-07	Calgary, AB
Bob Pringle & Bill Cody	1973-10-05	Calgary, AB
Kiwis: Nick Carter & Sweet William	1974-01-05	Edmonton, AB
Or 74-01-06 in Calgary, AB.
Stan Kowalski & Duke Savage	1974-08-30	Calgary, AB
Lennie Hurst & Rick Martel	1974-10-02	Regina, SK
Pat Kelly & Mike Kelly	1974-10-17?	Regina, SK?
Les Thornton & Frankie Laine	1975-01-24?	Calgary, AB
Still champions as of 75-02-07.
[...]
Mr. Hito & John Quinn	1975-04-15<
Vacant in 75-05 when the team splits.
Mr. Hito & Gil Hayes	1975-09-19	Calgary, AB
Defeat Keith Hart & Bob Pringle in tournament final.
Ed Morrow & Jerry Morrow	1975-12-26?	Calgary, AB
Ripper Collins & Don Gagne (Frenchy Martin)	1976-02-20<
Lumberjack Luke & Prince Tapu	1976-04-02?	Calgary, AB?
Ripper Collins & Bobby Bass	1976-04-09?	Calgary, AB?
Gama Singh & Crary Stevenson	1976-05-07<
[...]
Ed Morrow & Gama Singh	1976-06
Mr. Hito & Higo Hamaguchi (Animal Hamaguchi)	1976-06-18?	Calgary, AB?
Ed Morrow & Jerry Morrow [2]	1976-08-16	Saskatoon, SK
Repeated on 76-08-27 in Calgary, AB (or Hito & Hamaguchi regain the title sometime in-between).
Ripper Collins & Larry Sharpe	1976-09-24	Calgary, AB
Ed Morrow & Jerry Morrow [3]	1976-10-15	Calgary, AB
Cuban Assassins	1976-12-01<
Sometime after 76-10-26.
Leo Burke & Keith Hart	1977-02-09?	Saskatoon, SK?
Royal Kangaroos: Jonathan Boyd & Norman Frederick Charles III	1977-03-09?	Saskatoon, SK?
Leo Burke & Bobby Burke	1977-09-16<
Sometime after 77-08-12.
Mr. Hito & Michel Martel	1977-12-10?	Edmonton, AB
Jerry Morrow & George Wells	1978-02-17?	Calgary, AB
Norman Frederick Charles III & Cuban Assassin	1978-03-19	Edmonton, AB
Or sometime between 78-03-16 and 78-03-23.
Keith Hart & Hubert Gallant	1978-04-21	Calgary, AB
Winners unknown, but Hart & Gallant are billed as the champions on the following card.
Raul Castillo & Fidel Castillo	1978-09-01<
Sometime after 78-07-24.
Keith Hart & Bret Hart	1978-11-12?	Edmonton, AB
Mr. Hito & Mr. Sakurada	1979-02-10?	Calgary, AB
Leo Burke & Keith Hart [2]	1979-04-06	Calgary, AB
Dory Funk Jr. & Larry Lane	1979-04-13	Calgary, AB
Mr. Hito & Mr. Sakurada [2]	1979-07-07	Edmonton, AB
Keith Hart & Bret Hart [2]	1979-08
Vacant in 79.
Dynamite Kid & Mr. Sekigawa	1979-12-21	Calgary, AB
Defeat Leo Burke & Hubert Gallant in tournament final.
Keith Hart & Bret Hart [3]	1979-01-05<
Dynamite Kid & Loch Ness Monster (Luke McMasters)	1980-03-21	Calgary, AB
Keith Hart & Bret Hart [4]	1980-03-28	Calgary, AB
Len Denton & David Patterson	1980-04
Sometime after 80-04-04; may never defend the title; leave the terrioty in 80-05.
Dynamite Kid & Kasavudu	1980-06-03	Regina, SK
Defeat Keith Hart & Bret Hart.
Keith Hart & Bret Hart [5]	1980-08-12?	Regina, SK?
Kasavudu & Mr. Sakurada	1980-09-05	Calgary, AB
Jim Neidhart & Hercules Ayala	1980-09
Sometime between 80-09-22 and 80-09-26.
Duke Myers & Bobby Bass	1980-11-07	Calgary, AB
Leo Burke & Bobby Burke [2]	1980-12-02	Creston, BC
Duke Myers & Mike Sharpe Jr.	1981-02-14?	Edmonton, AB?
Still champions as of 81-04-25.
Duke Myers & Kerry Brown	1981-05-08<
Brown replaces Sharpe when Sharpe leaves the area; vacant in 82-03 when Brown & Myers are involved in a car accident.
Duke Myers & Kerry Brown	1982-03-23	Regina, SK
Defeat David Schultz & Leo Burke in tournament final.
Bruce Hart & Hercules Ayala	1982-05-25?	Regina, SK?
Duke Myers & Dynamite Kid	1982-06-01?	Regina, SK?
Leo Burke & Bret Hart	1982-11-19	Calgary, AB
Duke Myers & Kerry Brown [2]	1982-12-08	Edmonton, AB
Jim Neidhart & Mr. Hito	1983-03-11	Calgary, AB
Cuban Assassin & Francisco Flores	1983-09-09	Calgary, AB
Bruce Hart & Davey Boy Smith	1983-10-19
Danny Davis & Hubert Gallant	1984-02-27	Vancouver, BC
Declared vacant on 84-03-23 after the match against Phil Lafleur & Ben Bassarab.
Dynamite Kid & Davey Boy Smith	1984-03-31	Calgary, AB
Defeat Bad News Allen & Cuban Assassin in tournament final; vacant on 84-08-23 when promotion sold to WWF; Kid & Smith join WWF.
Honky Tonk Wayne (Wayne Farris) & Ron Starr	1985-10-25	Calgary, AB
Defeat Kerry Brown & Hubert Gallant in tournament final.
Leo Burke & Ron Ritchie	1986-02-07	Calgary, AB
Title immediately help up when Starr & Wayne run off with the belts.
Honky Tonk Wayne & Ron Starr [2]	1986-02-21	Calgary, AB
Defeat Burke & Ritchie in rematch.
Chris Benoit & Ben Bassarab	1986-03-01	Regina, SK
Honky Tonk Wayne & Cuban Assassin	1986-03-21	Calgary, AB
Chris Benoit & Keith Hart	1986-05-02	Calgary, AB
Title held up after a match awarded to Duke Myers & Kerry Brown on 86-05-30 in Calgary, AB.
Duke Myers & Kerry Brown [3]	1986-06-06	Calgary, AB
Defeat Benoit & Hart in rematch.
Ben Bassarab & Owen Hart	1986-08-09	Edmonton, AB
Viet Cong Express: Hase Hiroshi & Niikura Fumihiro	1986-10-03	Calgary, AB
Vacant in 87-01 when Niikura returns to Japan in 86-12 after suffering health problems and does not return; a planned replacement is injjured while training.
Bruce Hart & Brian Pillman	1987-04-05	Calgary, AB
Defeat Cuban Assassin & Ron Starr in tournament final; title held-up after the match against Makhan Singh & Jerry Morrow on 87-10-09.
Makhan Singh & Jerry Morrow	1987-11-11	Great Falls, MT, USA
Win rematch.
Bad Company: Bruce Hart & Brian Pillman [2]	1987-11-13	Calgary, AB
Cuban Commandos: Jerry Morrow & Cuban Assassin	1988-07-22	Calgary, AB
Chris Benoit & Lance Idol	1988-10-07	Calgary, AB
Cuban Commandos [2]	1988-10-28	Calgary, AB
British Bulldogs: Dynamite Kid & Davey Boy Smith [2]	1988-12-07	Calgary, AB
Makhan Singh & Vokkan Singh (Gary Albright)	1988-12-30	Calgary, AB
Chris Benoit & Biff Wellington	1989-04-08	Calgary, AB
Bob Brown & Kerry Brown	1989-06-09	Calgary, AB
Benkei Sasaki (Sasaki Kensuke) & Sumo Hara (Kitahara Tatsumi)	1989-08-18	Calgary, AB
Apocalypse & Destruction	1989-09-29	Calgary, AB
Promotion closes in 89-12.
Greg Pawluk & Johnny Devine	2000-02-04	Calgary, AB
Defeat Dick Raines & Tiger Mahatma Khan in tournament final.
Dick Raines & Frank Einstein	2000-06-09	Calgary, AB
Vacant in 00.
Bruce Hart & Ted Hart	2002-04-05	Calgary, AB
Defeat Dave Swift & Apocalypse in a tournament final.
Bruce Hart & T.J. Wilson	2002-04
Wilson replaces the injured Ted Hart; still champions as of 02-09-06.
[...]
Harry Smith & Apocalypse	2004-03-26	Calgary, AB
Defeat Dave Swift & Johny Devine in tournament final; vacant when Smith and Apocalypse split up.
Apocalypse & Dave Swift	2004-04-04	Calgary, AB
Defeat Harry Smith & Johnny Devine.
Harry Smith & Kirk Melnick	2004-05-28	Calgary, AB
Duke Durango & Karnage	2004-11-19	Calgary, AB
Karachi Vice: Tiger Raj Singh & Gama Singh Jr.	2005-03-04	Calgary, AB
Ravenous Randy & Pyro Pete Wilson	2005-11-04	Calgary, AB
Karachi Vice [2]	2005-12-16	Calgary, AB
Duke Durango & Chris Steele	2006-06-30	Calgary, AB
Juggernaut & Pete Wilson	2006-07-28	Calgary, AB
Juggernaut & T.J. Wilson	2006-11-10
T.J. replaces the injured Pete.
A-Team: Dusty Adonis & Michael Avery	2007-02-10	Calgary, AB
Lose to Juggernaut & Wilson in a title match but are awarded the belts since Wilson is leaveing the promotion for WWE.
Funky Bunch: Mark Avery & Phoenix Taylor	2007-11-16	Calgary, AB
Promotion closes in 08-04.

* Thanks to "cman73". Paul Sosnowski, and Kriss Knights for the additional information.