The early services of this officer were associated with the sixteenth light dragoons, in which, upon that regiment being raised in 1759, Sir George Osborn, Bart., obtained a troop on the 20th of December of that year, and on the 13th of February, 1762, he was promoted to the rank of major in the eighteenth, Royal Irish, regiment of foot. On the 31st of March, 1763, Major Sir George Osborn was appointed deputy quarter-master-general to the Forces in Ireland, and on the 19th of November, 1765, he was promoted to the third regiment of foot guards as captain and lieut.-colonel, in which regiment he was appointed second major, with the brevet rank of colonel in the army, on the 7th of August, 1777. On the 19th of February, 1779, he was advanced to the rank of major-general, and was appointed lieut.-colonel in the third regiment of foot guards on the 25th of March, 1782. Upon the second battalion of the forty-second, Royal Highlanders, being numbered the SEVENTY-THIRD Highland regiment in 1786, His Majesty King George III. appointed Major-General Sir George Osborn, Bart., to the colonelcy of the SEVENTY-THIRD on the 18th of April of that year, and on the 11th of August following he was removed to the fortieth regiment, which he retained until his decease. On the 28th of September 1787, Sir George Osborn was advanced to the rank of lieut.-general, and to that of general on the 26th of January, 1797. General Sir George Osborn died at Chicksands Priory on the 29th of June, 1818, in the seventy-seventh year of his age. SIR WILLIAM MEDOWS, K.B. _Appointed 11th August, 1786_.