(en) « Tunney, Gene » , sur encyclopedia.com (consulté le ).
findagrave.com
fr.findagrave.com
(en) « Jack Dempsey » , sur findagrave.com (consulté le ).
google.fr
books.google.fr
(en) Cavanaugh, Jack, Tunney: Boxing's Brainiest Champ and His Upset of the Great Jack Dempsey, New York London: Ballantine Books, Turnaround distributor., (ISBN978-0812967838, lire en ligne)
Pierre Ripert, La franc-maçonnerie révélée aux profanes, Presses du Châtelet, , 455 p. (lire en ligne)
(en) « Dempsey's rise like flash of meteor; New champion battled his way to pugilistic fame in period of three years. Willard his antithesis giant Kansan disliked fighting and has only one great victory to his credit. Dempsey a powerful hitter. Willard's age camouflaged », The New York Times, (lire en ligne)
(en) « Jack Kearns, Manager of Dempsey, Dies at 80; Earned and Spent a Fortune as Pilot of Six Champions-- Associated With Rickard Life Full of Drama Taught Dempsey Left Hook Dempsey Winner in 15 », The New York Times, (lire en ligne)
(en) John S. Radosta, « Georges Carpentier, Boxer, Dies in Paris », The New York Times, (lire en ligne)
(en) « DEMPSEY'S BROTHER SLAYS WIFE, SELF; John Dempsey Shoots Woman, Then Commits Suicide, at Schenectady. BOXER IDENTIFIES BODIES He Is Deeply Affected by the Tragedy -- Couple Had Been Estranged for Year. », The New-York Times, (lire en ligne)
timesmachine.nytimes.com
(en) Tex Rickard, « Jack Dempsey, new heavyweight champion, announces he will draw the colour line », The New-York Times, (lire en ligne)
redacaoemcampo.com
(en) « Boxe : First Million Fight – Jack Dempsey contre Georges Carpentier », REDACAOEMCAMPO, (lire en ligne)