Wikipedia: John Travers was the son of Joseph Travers, a shoemaker in Windsor. He was initially a chorister at St. Georges Chapel in his hometown. In 1719 he came under the apprenticeship of Maurice Greene and copied many of that composer's works between 1722 and 1728. Toward the end of this activity, Travers became a close friend of the composer Johann Christoph Pepusch from whom he apparently inherited a lively interest in early music. On November 24, 1726, after receiving the support of the Duke of Bedford, he was given the post of organist at St. Paul's Covent Garden Church in London and later at Fulham Parish Church. In the subscription lists to Handel's opera Admeto (1727), he is described as an assistant organist at St Paul's Cathedral, a position that did not officially exist. On May 10, 1737, he succeeded Jonathan Martin (c. 1715-1737) as one of the organists of the Chapel Royal (along with Maurice Greene), that is, shortly after he resigned the Fulham post. In May 1739 he was one of the first to join the fund for the support of the families of deceased musicians ( later this institution was called the Royal Society of Musicians). Not much is known of his later life, except that he continued a close friendship with Pepusch, who bequeathed him his library and certain personal items in his will.
Note: Translated from the German version of Wikipedia into English.