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 Welterweight Title
Declared vacant by IBU upon its inception in 1913-05 (Le Sport Universel Illustré, Paris, FRA, 13-07-06); still vacant as of 14-04-06.
[...]
Jack Britton
1919-03-17
Canton, OH, USA
Defeats Ted Lewis for the world title; officially recognized by IBU at its convention as of 20-02-05 (The Sandusky Star-Journal, Sandusky, OH, USA, 20-02-06).
Mickey Walker
1922-11-01
New York, NY, USA
Recognized by IBU as of 23-11-18 (The Ottawa Citizen, Ottawa, ON, CAN, 23-11-19).
Pete Latzo
1926-05-20
Scranton, PA, USA
Joe Dundee
1927-06-03
New York, NY, USA
Jackie Fields
1929-07-25
Detroit, MI, USA
Jack Thompson
1930-05-09
Detroit, MI, USA
Recognized by IBU as of 30-05-22 (Associated Press, 30-05-22).
Tommy Freeman
1930-09-05
Cleveland, OH, USA
Jack Thompson [2]
1931-04-14
Cleveland, OH, USA
Lou Brouillard
1931-10-23
Boston, MA, USA
Jackie Fields [2]
1932-01-28
Chicago, IL, USA
Recognized by IBU as of 32-05-22 (The San Francisco Examiner, 32-05-23).
Young Corbett III
1933-02-22
San Francisco, CA, USA
Recognized by IBU as of 33-04-03 (United Press, 33-04-03).
Jimmy McLarnin
1933-05-29
Los Angeles, CA, USA
Barney Ross
1934-05-28
Long Island City, NY, USA
Jimmy McLarnin [2]
1934-09-17
Long Island City, NY, USA
Barney Ross [2]
1935-05-28
New York, NY, USA
Defeats Jimmy McLarnin for the title; still recognized as of 37-09; recognition withdrawn by IBU in 38-01 for refusing to fight Gustave Roth (Het Volksdagblad, Amsterdam, NED, 38-02-07).
Felix Wouters
1938-02-16
Brussels, BEL
Belgian champion, defeats German champion Gustav Eder; also holds European Title; recognition withdrawn in 38-04 when IBU joins the newly founded World Boxing Commission in an effort to have one universally recognized champion.
Barney Ross [3]
1938-04
Again recognized in Europe by the World Boxing Commission in 38-04 (International News Service, 38-04-22).
