A true and faithful narrative of the life and actions of John Oneby, Esq : Commonly called Major One BY; who was to have been executed last Monday at Tyburn, for the murder of William Gower, Esq; giving an account of his birth, Parentage and Education. Of his Killing Count Truxy a Saxon Officer in Flanders; Lieut. Toolley in Jamica, and the Murder of himself in Newgate: with the copy of a letter he wrote to a Gentleman an Hour before he committed that Violent Action; and of an Amazing Wicked Declaration he made a few Days before it, of an Undertaker's Letter to him about his Burial; and his Behaviour thereupon. Also, of a remarkable Instance of Generosity in one of his Fellow-Prisoners. With many other Surprizing Particulars.