John McMahon (July 7, 1841 – April 3, 1911) was an American professional wrestler who specialized in collar-and-elbow wrestling. He competed from 1861 to 1891, and was undefeated for 17 years. He traveled throughout the world to face the top wrestlers of the day. He competed in several styles of wrestling which included collar-and-elbow, catch wrestling and Greco-Roman wrestling. His biggest rivalry was with Colonel J.H. McLaughlin. Toward the end of his career, he performed in wrestling matches for traveling circuses. He is no relation to the McMahon family. Career John McMahon was born in Bakersfield, Vermont July 7, 1841 to Hugh McMahon (August 1812 – November 14, 1874) and Ann Owens (August 1798 – October 19, 1883) of Ireland. He had 1 younger Brother Thomas H. McMahon and Two Sisters Bridget, and Elizabeth. McMahon served in the Union army Co G 13th VT Volunteers under Captain Marvin White. during the Civil War. The 13th Regiment went into camp at Brattleboro on September 29, 1862, and was mustered into United States service on October 3 with 953 officers and men. It left Vermont on October 11, and arrived in Washington, D.C. on October 13. The regiment set up camp on East Capitol Hill, a half-mile west of the 12th Vermont Infantry, then moved to Camp Chase, Arlington, Virginia, on October 25, returning to East Capital Hill three days later when the 2nd Vermont Brigade was formed. The regiment marched to Munson's Hill on October 30, and Hunting Creek on November 5, where it stayed until November 26, in 'Camp Vermont'. It was engaged in picket duty near Fairfax Courthouse until December 12 to January 20, 1863, participating in a repulse of J.E.B. Stuart's cavalry on December 29. The regiment was stationed at Wolf Run Shoals from January 20 to April 2, then performed railroad guard duty at Warrenton Junction until June 25. On June 25, the brigade was assigned as the 3rd Brigade, 3rd Division, I Corps, and ordered to form the rear guard of the Army of the Potomac as it marched north after Robert E. Lee's Army of Northern Virginia. The 13th marched with the brigade from Wolf Run Shoals on June 25, crossed the Potomac river on June 27 at Edward's Ferry, and moved north through Frederick City and Creagerstown, Maryland. On the morning of July 1, it left Westminster, Maryland, arrived on the battlefield at Gettysburg