Edwin Bibby	1886-06-28	Cincinnati, OH
Defeats James Faulkner, billed as English champion, to become the World Catch-as-Catch-Can champion (Chicago Tribune, 86-07-05); also billed as American champion (The Enquirer, Cincinnati, OH, 86-06-29); retires around 88.
James Faulkner	1890-03<
Billed as champion in Buffalo, NY (The Buffalo Commercial, 90-03-07); still champion in Detroit, MI as of 90-10-12.
Tom Connors	1890-03-17	Kankakee, IL
Defeats Sam Matthews.
Barney McFadden	1891-10-31	St. Louis, MO
Defeats Illinois champion Henry O. Pearson.
Ed Atherton	1893-03<
Billed as champion in Rochester, NY (Rochester Democrat and Chronicle, 93-03-14) and Erie, PA (Erie Daily Times, 93-03-16).
Tom Connors [2]	1894-01-19	Warren, PA
Also billed as the world champion.
[...]
Ed Atherton [2]	1894-04<
Billed as champion in Cleveland, OH (The Cleveland Leader, 94-04-29) and Rochester, NY (Rochester Democrat and Chronicle, 94-11-24); also billed as the world champion; also defeats other claimants Peter Schumacher on 95-01-25 in Rochester, NY and Tom McMahon on 95-02-19 in Cleveland, OH; still/again champion as of 1902-02-10 and 03-01-23.
Walter Willoughby	1904-01-18	Buffalo, NY
Also billed as the world champion; also recognized as of 08-02-11 and 08-04-23 in Indianapolis, IN and 08-12-10 in Syracuse, NY.
Joe Hanson	1909-04-28<
Billed as champion in in Boston, MA for having defeated Willoughby.
Walter Willoughby [2]	1909-10-15<
Recognized in Boston, MA; also recognized in Chicago, IL as of 10-02.
Herman Smith	1893-05<
Billed as champion in Freeport, IL (Freeport Daily Democrat, 93-05-24).
George Baptiste	1895-01-27<
Still billed as champion in Cairo, IL as of 1908-12-06; still/again billed as champion as of 09-02-09 in Dallas, TX for having held the title "for many years" (Dallas Morning News, 09-02-09).
Frank Lewis	1896-07-07<
Billed as champion in Winnipeg, MB, CAN; still/again champion in Spokane, WA as of 98-02-28.
Jake Snyder	1897-07-09<	Oil City, PA *
Billed as champion in Dayton, OH for having defeated Harvey Parker "a year ago" in Oil City, PA (The Dayton Herald, 98-08-05); also defeats another claimant Eddie Barr on 99-02-23 in Dayton, OH.
Mike Dwyer	1898<
Ed Adamson	1898-09-03?	Chicago, IL
Samuel Murbarger	1899-03-23?	Indianapolis, IN?
Billed as champion for having defeated Adamson after "only a few months" Adamson defeats Dwyer for the title (The Dayton Herald, Dayton, OH, 99-12-28).
Alex Swanson	1900-07-16	New Britain, CT
Defeats Pacific Coast champion Michael Brennan to claim the United States title (The Yonkers Herald, Yonkers, NY 00-07-17); wins the world welterweight title on 03-12-03.
Tom McMahon	1900-01-09<
Claims the title in Washington, DC.
[...]
Eddie Barr	1906-12<
Claims the title in Washington, DC (The Washington Herald, 06-12-15).
Mike Dwyer	1903-02-26<
Billed as champion in Hartford, CT; still/again recognized in Wilmington, DE as of 04-10-08.
Frank Coleman (Martin Lewis)	1903-03<
Billed as champion in Oklahoma City, OK (The Daily Oklahoman, 03-03-06); also claims the title in Whatcom, WA as of 03-07-17; still champion in Whatcom, WA as of 03-09-24; also defeats another claimant Ed Atherton on 03-12-22 in Rockford, IL (see below); claims the title billed as Martin Lewis in Belvedere, IL as of 04-01-05; still/again billed as champion in Hannibal, MO as of 04-05-12.
Ed Atherton	1903-12<
Marin Lewis (Frank Coleman)	1903-12-22	Rockford, IL
Has been billed as champion as early as 03-03-06 in Oklahoma City, OK and 03-07-17 in Whatcom, WA (see above); still champion in Hannibal, MO as of 04-05-12.
Ed Atherton	1905-05<
Billed as champion in Springfield, MA (The Meriden Daily Journal, Meriden, CT, 05-05-23).
Jim Barnes	1905-06-28	Springfield, MA
Also defeats Joe Acton, billed as English champion, on 06-02-14 in Springfield, MA; also billed as champion in Jacksonville, FL (The Metropolis, Jacksonville, FL, 06-02-28); claimant Ed Atherton defeats another claimant Max Muller on 06-05-22 in Springfield, MA; Barnes defeats Atherton on 06-05-29 in Springfield, MA; recognized throughout New England; still champion as of 07-12-16, 09-03-25, and 11-01-12; also billed as world champion at least between 07-11-26 and 09-05-11.
Fred Beell	1905-10-15<
Billed as champion in Duluth, MN.
Americus (Gus Schoenlein)	1908-04-08	Baltimore, MD
Harvey Parker	1906-12<
Claims the title in Boston, MA (The Boston Globe, 06-12-12).
Young Salmson (Robert Schwab)	1907-05<
Billed as champion in Tacoma, WA (The Tacoma Daily News, 07-05-22).
[...]
Carl Busch	1910-08-08<
Claims the title of "both America and Germany" in Aberdeen, WA (Aberdeen Herald, 10-08-08); still claims both titles as of 11-01-03 in Roseberg, OR.
Dan McLeod	1908-09<
Henry Gehring	1908-09-18	Cleveland, OH
Wins World Title on 09-04-28.
Arthur Montour	1909-05<
Claims the title in Ft. Worth, TX (The Fort Worth Record, 09-06-01); wins the world title, defeating Ed Adamson on 09-11-05 in Oklahoma City, OK.
Sam Anderson	1909-06-04<
Recognized in Boston, MA and Washington, DC; also billed as world champion in New England; still/again champion in Providence, RI as of 10-11-09.
Jack Olson	1909-10<
Billed as champion in Dubuque, IA; may start claiming World Title after defeating Dan McBride, billed as Canadian champion, on 09-10-25 in Dubuque, IA.
Samuel Murbarger [2]	1909-11-10<
Billed as champion in Coshocton, OH.
Joe Turner	1910-03-22<
Also defeats another claimant Young Monday on 10-11-10 in Charlotte, NC; may be vacant after Turner wins World Title on 11-03-24.
Joe Collins	1910-09-27<	`
Has claimed the title for "several years" (Arkansas Gazette, Little Rock, AR, 10-09-27).
Young Beell (Henry Beell)	1910-11-01	Little Rock, AR
Andres Balsa	1912-06-16<
Claims the title in El Paso, TX.
Scotty McClure	1912-07-13<	`
Claims the title in Lawrence, KS.
[...]
Joe Acton	1917-04-13<
Claims the title in Home City, KS.
Gus Pappas	1913-09-27<
Billed as champion in Northern California; loses to California champion Joe Mendoza on 13-11-06 in Oakland, CA but continues to claim the title; still champion as of 14-12-23; continues to claim the title in Southern California in 15-10; billed as Pacific Coast champion in Arizona in 19.
[...]
Gus Pappas [2]	1920-01-06<
Billed as champion in Arizona; still champion as of 20-01-21; still/again claims the title as of 20-11-02 in Los Angeles, CA and 21-12-03 in Tulsa, OK.
Henry Irslinger	1915-05<
Billed as champion in Butte, MT (The Butte Daily, Post, 15-05-21); still/again claims the title in Wichita Falls, TX as of 20-11-30.
Young Hackenschmidt	1915-10<
Billed as champion in Beatrice, NE (Beatrice Daily Sun, 15-10-24).
Waino Ketonen	1917-01-18<
World champion, often billed as the American champion in Minnesota; still champion as of 17-02-24; Henry Karhunsaari also claims the title in Brainerd, MN as of 17-01.
Ben Reuben	1917-06-03<
World champion, often referred to as the American champion in Chicago, IL.
[...]
Kid Ross	1920-02-23<
Billed as champion in Mishawaka, IN.
Frank Burns	1919-12-10<
Recognized in Florida; still champion as of 20-01-06.
Jimmy Demetral	1920-02<
Claims the title in Racine, WI for throwing "the three men which he was matched against in short order" (Racine Journal-News, 20-02-12); starts claiming the World Title by 21-01.
Billy Schober	1920-02<
Recognized as United States champion.
Paul Bowser	1920-02-19	Newark, OH
Has also claimed the title before the match and defeats Schoeber to end the dispute.
Walter Evans	1921-01-03<
Claims the title in Knoxville, TN (Nashville Banner, 21-01-03).
Joe Turner	1923-10<
Billed as champion in Chicago, IL; Johnny Meyers defeats Turner to retain his world title on 23-11-06 in Chicago, IL.
Henry Karhusaari	1924-03<
Claims the title in Billings, MT (The Billings Gazette, 24-03-20).
Chris Jordan	1926-12
Billed as American champion in Detroit, MI from 26-12 based on his world title win over Hugh Nichols in Columbus, OH (Detroit Tiomes, 27-06-14); still champion as of 27-06-14.
Peter Jarvis	1930-01<
Claims the title in Red Bank, NJ (Red Bank Register, 30-01-22).
Ed Ross #	1932-01<
Billed as champion in Wetaskiwin, AB, CAN (The Wetaskiwin Times, 32-01-28).