1934
Sep 28 Boy Ramsey Belfast, Ireland D 4
Dec 19 Jim Pedlow Belfast, Ireland W 4
1935
Feb 17 Vic Large Belfast, Ireland KO 4
Mar 29 Young Finnegan Belfast, Ireland KO 4
1936
Jan 13 Sam Ramsey Belfast, Ireland W 6
Feb 22 Young Josephs Belfast, Ireland W 6
Mar 20 Sam Ramsey Carrickfergus, Ireland D 6
Mar 28 Sam Ramsey Belfast, Ireland W 6
Apr 08 Young Kelly Belfast, Ireland W 6
May 16 Young Josephs Belfast, Ireland TK 3
May 20 Jack McKenzie Belfast, Ireland D 10
Jul 24 Young Josephs Larne, Ireland D 6
Sep 18 Joe Duffy Larne, Ireland W 6
1937
May 1 Jim Keery Belfast, Ireland L 6
May 10 Mick Gibbons Belfast, Ireland W 6
Jun 21 Mick Gibbons Belfast, Ireland W 6
Jul 7 Sam Ramsey Belfast, Ireland W 6
Jul 13 Ted Meikle Belfast, Ireland TK 4
Aug 9 Ted Meikle Belfast, Ireland W 8
Aug 18 Frank Benson Belfast, Ireland TK 6
Sep 17 Ted Meikle Belfast, Ireland W 8
Oct 1 Paddy O'Toole Belfast, Ireland TK 4
Nov 17 George Lang Belfast, Ireland KO 1
Dec 2 Tommy Allen Belfast, Ireland KO 5
1938
Jan 21 Alf Hughes Belfast, Ireland KO 9
Feb 4 Pat Murphy Belfast, Ireland TK 4
Mar 1 Spider Allen Belfast, Ireland KO 2
Mar 15 Cyclone Kelly Belfast, Ireland W 10
Mar 31 Cyclone Kelly Liverpool, England W 10
-Some sources report 3/03/38
May 6 Joe McCluskey Belfast, Ireland W 10
May 27 Peter Peters Belfast, Ireland KO 1
Jun 18 Ivor Neil Belfast, Ireland KO 1
Jul 2 Joe Kiely Belfast, Ireland W 10
Jul 23 Jackie Paterson Belfast, Ireland LK 5
Aug 11 Joe Curran Liverpool, England W 10
-Some sources report "Belfast, Ireland"
Sep 2 Tommy Stewart Belfast, Ireland L 10
1939
Feb 27 Joe Curran Newcastle, England KO 5
-Some sources report "Liverpool, England"
Mar 20 Sammy Reynolds Newcastle, England W 10
Jun 28 Tommy Stewart Belfast, Ireland W 8
Jul 20 Billy Ashton Liverpool, England W 8
Nov 8 Seaman Chetty Newcastle, England W 10
1940
Jan 10 Paddy Ryan Newcastle, England L 10
Mar 4 Tommy Stewart Belfast, Ireland W 8
Mar 20 Jimmy Gill Newcastle, England L 10
1942
Dec 26 Joe Meikle Belfast, Ireland W 8
1943
Jun 6 Harry Rodgers Belfast, Ireland D 8
Jul 13 Ike Weir Belfast, Ireland L 10
1944
Oct 4 Joe Meikle Belfast, Ireland KO 1
1945
Feb 9 Joe "Boy" Collins Dublin, Ireland W 10
-Some sources report 7/09/45
Sep 13 Tommy Burney Liverpool, England W 10
Oct 18 Joe Curran Liverpool, England L 10
Nov 6 Ed "Bunty" Doran Belfast, Ireland KO 4
1946
Apr 4 Tommy Burney Liverpool, England W 8
Jun 7 Jackie Paterson Belfast, Ireland TK 7
-Some sources report "TK 6"
Sep 11 Alex Murphy Glasgow, Scotland W 8
Sep 24 Sammy Reynolds Belfast, Ireland WF 8
1947
Mar 11 Terry Allen London, England KO 1
Jul 1 Emile Famechon London, England W 10
Jul 16 Salvador "Dado" Marino Glasgow, Scotland LF 9
Oct 20 Salvador "Dado" Marino London, England W 15
-NBA Flyweight Championship of the World
1948
Mar 23 Jackie Paterson Belfast, Ireland KO 7
-NBA Flyweight Championship of the World
Flyweight Championship of the British Empire (Commonwealth)
BBBC Flyweight Championship of Great Britain
Jun 28 Charlie Squire Birmingham, England TK 7
1949
Feb 7 Terry Allen London, England L 8
Apr 5 Maurice Sandeyron Belfast, Ireland W 15
-NBA Flyweight Championship of the World;
EBU Flyweight Championship of Europe
Aug 19 Otello Belardinelli Belfast, Ireland W 10
Sep 30 Terry Allen Belfast, Ireland D 15
-NBA Flyweight Championship of the World;
EBU Flyweight Championship of Europe
Flyweight Championship of the British Empire (Commonwealth)
BBBC Flyweight Championship of Great Britain
1950
Mar 30 -Monaghan relinquished his titles
Apr 25 -Monaghan announced his retirement from the ring because of chronic bronchitis