Following the name of the champion(s): Indicates the number of times the competitor has held that title at that point.
[...]
Indicates a gap in the listing where title changes are not known.
<
Title was held or changed hands no later than this. In these cases, it is known that a competitor held the title at a certain time but not when he/she won it.
@
Order uncertain. Different titleholders may be known for the same year, for example, but it is not known who held the title before whom.
#
Unofficial or disputable claims. These are usually matches that certainly took place, but where there is doubt that the competitor shown should be recognized as a true title holder. These listings are also italicized.
International Boxing Union
World Bantamweight Title
Johnny Coulon
1913-06
Has defeated Frankie Conley for the vacant title on 11-02-26 in New Orleans, LA, USA; recognized by IBU upon its inception in 1913-05 (Le Sport Universel Illustré, Paris, FRA, 13-07-06).
Kid Williams
1914-06-09
Vernon, CA, USA
Has claimed the world title since defeateing Eddie Campi on 14-01-31 in Vernon, CA, USA; defeats Coulon on 14-06-09 to be recognized by IBU.
Pete Herman
1917-01-09
New Orleans, LA, USA
Officially recognized by IBU at its convention on 20-02-05 (The Sandusky Star-Journal, Sandusky, OH, USA, 20-02-06).
Joe Lynch
1920-12-22
New York, NY, USA
Pete Herman [2]
1921-07-25
Brooklyn, NY, USA
Johnny Buff
1921-09-23
New York, NY, USA
Joe Lynch [2]
1922-07-10
New York, NY, USA
Recognized by IBU as of 23-11-18 (The Ottawa Citizen, Ottawa, ON, CAN, 23-11-19).
Abe Goldstein
1924-03-21
New York, NY, USA
Eddie Martin
1924-12-19
New York, NY, USA
Charley Phil Rosenberg
1925-03-20
New York, NY, USA
Stripped by NYSAC on 27-02-04 when Rosenberg does not make the weight limit for the title match.
Al Brown
1930-10-04
Paris, FRA
Defeats Eugene Huat; officially recognized by IBU at its convention on 32-05-22 (The San Francisco Examiner, 32-05-23).
Baltasar Sangchili
1935-06-01
Valencia, ESP
Vacant as of 36-09-01, possibly due to Sangchili's loss of his title claim to Tony Marino on 36-06-29.
Al Brown [2]
1938-03-04
Paris, FRA
Defeats Baltasar Sangchili for the vacant title; recognition withdrawn in 38-04 when IBU joins the newly founded World Boxing Commission in an effort to have one universally recognized champion.
Sixto Escobar
1938-04
Has won NBA and NYSAC titles on 38-02-20; recognized by the World Boxing Commission in 38-04 (International News Service, 38-04-22); vacates on 39-10-27.
