This unfortunate man, who gave his age in Newgate as only thirty-three, was, in fact, nearly forty years old; but his appearance bore out the assertion which he made. He was born in the town of Naas, in the county of Kildare, about fifteen miles from Dublin. His father had been a corn and flour merchant, and a considerable holder of land; and having by dint of industry amassed a large sum of money, he became a magistrate for the county of Kildare, and was much respected. He had four children besides the unfortunate subject of this sketch, namely, two females, who were respectably married, and two sons, one of whom was a lieutenant-colonel in the British service, while the other was a solicitor, and the senior partner in a firm of great respectability in Dublin. The deceased was early in life of a dissipated turn, and quitted home to take a commission in a foot regiment, which had been procured for him, in order to keep him out of harm's way. He soon retired from the army, however, although he retained the title given to him by his commission. At an early period of his career, he became an adept at forgery; and counterfeited the signature of the Hon. Mr. Neville, at that time M.P. for the county of Kildare, who wrote an extremely cramped and illegible hand, to such a degree of perfection, that that gentleman himself was only able to detect the imposition by the fact, that he had never placed his signature to an instrument like that which had been forged. Young Montgomery escaped prosecution in this instance, on account of the respectability of his family, and he shortly after came to London. He there assumed the airs of a person of fortune; mixed in good society, and for a considerable time lived upon "his appearance." His cheats and swindling were of daily occurrence; and in one instance, having been detected in a transaction of no very honest character, he only escaped punishment by refunding such portion of the money which he had obtained as he had not spent, and by giving up his watch and trinkets to make up the deficiency. He was frequently in prison for debt; first in Newgate, and afterwards in the King's Bench, and after his discharge from the latter place, where he had undergone a detention of three years' duration, he was on the point of marriage with the daughter of a gentleman of respectability, to whom he had represented himself as his brother, Colonel Montgomery, when the fraud was discovered, and the match broken off, at the very moment when it was about to be completed. Being now reduced to the lowest ebb, and having no longer any chance of living upon credit, he resorted to the circulation of forged bank-notes as affording him the only means left of obtaining a livelihood. WILLIAM CORDER. EXECUTED FOR THE MURDER OF MARIA MARTEN.