The Stomper (Archie Gouldie)	1968-07
Stampede North American Champion, also biled as champion in Moncton, NB (The Moncton Daily Times, 68-07-10); loses the Stampede recognition on 68-09-16 but continues to be recognized in Moncton, NB.
The Beast (Yvon Cormier)	1969-06-30	Moncton, NB
The Stomper [2]	1969-08-12	Halifax, NS
Held up after the match against Bobo Brazil on 69-09-16 in Halifax, NS.
Bobo Brazil	1969-09-23?	Halifax, NS?
Wins rematch?
The Stomper [3]	1969-10-07	Halifax, NS
Ends the season as the champion.
Bobby Red Cloud	1970-05
Billed as champion when the season starts (The Moncton Transcript, Moncton, NB, 70-05-08).
The Stomper [4]	1970-05-26	Halifax, NS
The Beast [2]	1970-07-27	Moncton, NB
Eric Pomeroy	1970-10-06?	Halifax, NS?
Or sometime between 70-10-02 and 70-10-10.
Leo Burke	1971-06-05	Berwick, NS
Pat O'Connor	1971-08-24	Halifax, NS
Leo Burke [2]	1971-09-21<
Gino Brito	1971-09
"New champion" (The Moncton Transcript, 71-09-25).
Leo Burke [3]	1971-09-27	Halifax, NS
Still champion as of 71-10-19; may be vacant in 72-06<.
Killer Karl Krupp	1972-06-05?	Moncton, NB?
Defeats Leo Burke (for the vacant title?); or 72-06-06 in Halifax, NS.
Eric Pomeroy [2]	1972-07-10	Moncton, NB
May be repeated next day in Halifax, NS.
Killer Karl Krupp [2]	1972-07-18	Halifax, NS
The Beast [3]	1972-09-25	Halifax, NS
Nature Boy Dillon (James Dillon)	1973-05-28	Moncton, NB
Killer Karl Krupp [3]	1973-08-14?	Halifax, NS?
Or sometime between 73-08-02 and 73-08-18.
The Stomper [5]	1973-09-23?	N. Sydney, NS?
Or 73-09-24 in Moncton, NB; ends the season as the champion; also wins Stempede North American Title on 73-12-28 in Calgary, AB, defeating Omar Atlas.
Harley Race	1974-04
Recognized as the champion when the season starts for defeating Gouldie for the Stampede version (The Moncton Transcript, Moncton, NB, 74-05-03) on 74-02-22 in Calgary, AB although Race has lost it back to Gouldie on 74-03-08.
Leo Burke [4]	1974-05-13?	Moncton, NB?
Taped Fist champion, defeats Race in a double title match.
Great Kuma (Okuma Motoshi)	1974-05-19	N. Sydney, NS
Or sometime between 74-05-16 and 74-05-20.
The Beast [4]	1974-06-16	N. Sydney, NS
Great Kuma [2]	1974-06-23?	N. Sydney, NS?
Eric Pomeroy [3]	1974-07-25?	Fredericton, NB?
Sometime after 74-07-16.
Bolo Mongol	1974-08-05	Moncton, NB
The Stomper [6]	1974-09-07	New Glasgow, NS
Bolo Mongol [2]	1974-09-24	Halifax, NS
Ends the season as the champion.
Leo Burke [5]	1975-05	Detroit, MI, USA *
Billed as champion when the season starts, for having won the title in Detroit, MI.
Bob Brown	1975-07-29	Halifax, NS
Leo Burke [6]	1975-10-21	Halifax, NS
Subs for the scheduled challenger Killer Karl Krupp.
Bob Brown [2]	1975-10-29
NWA nullifies the title change and returns to Brown upon his appeal that a substitute should not win the title.
Rudy Kay	1975-11-18	Halifax, NS
Vacant when the season ends without notice, leaving Kay unable to defend within 30 days.
Tommy Gilbert	1976-04
Billed as champion when the season starts, for having won a tournament in the US.
The Brute	1976-05-31?	Moncton, NB?
Leo Burke [7]	1976-09-28?	Halifax, NS?
Michel Dubois	1976-10-03?	N. Sydney, NS?
Ends the season as the champion.
Leo Burke [8]	1977-05
Billed as champion when the season starts.
Steve Bolus	1977-06-04<
Frenchy Martin	1977-06-09?	Halifax, NS?
Leo Burke [9]	1977-07-14	Halifax, NS
Inactive after TCW closes in 77-07; again recognized in Toronto in 82-10.
Johnny Weaver	1983-04-10	Toronto, ON
Leo Burke [10]	1983-05-29	Toronto, ON
The Stomper is recognized as champion by AGPW in 84-06; Burke returns to Maritimes for International Wrestling when Toronto promotion joins WWF in 84-07.
The Stomper [7]	1984-08-14	Halifax, NS
Jumps to IW and defeats Burke in a unification match; the same unification match is possibly repeated on 84-08-12 in N. Sydney, NS, 84-08-13 in Dieppe, NB, and/or 84-08-16 in Oromocto, NB; promotion closes at the end of the season.

* Thanks to "cman73" for the additional information.