Colonel John Adlercron was appointed by His Majesty King George II. to the Colonelcy of the THIRTY-NINTH regiment on the 14th of March 1752, upon Brigadier-General Edward Richbell being removed to the Seventeenth Foot. In the beginning of 1754, Colonel Adlercron embarked with his regiment for Madras; in October 1756, a portion of the THIRTY-NINTH proceeded to Bengal with other troops under Lieut.-Colonel Clive. Of this force Colonel Adlercron claimed the command, but it was determined that he should remain at Madras with the remainder of the regiment. In May 1757 Colonel Adlercron marched from Madras in command of the force destined for the relief of _Trichinopoly_, then threatened by the French, and was afterwards engaged in operations against Wandewash, and in the vicinity of that place. On the 16th of May 1758 Colonel Adlercron was advanced to the rank of Major-General, and to that of Lieut.-General on the 18th of December 1760. His decease occurred on the 31st of July 1766. SIR ROBERT BOYD, K.B. _Appointed 6th August 1766._ Colonel Robert Boyd was appointed from the First Foot Guards to the Colonelcy of the THIRTY-NINTH regiment on the 6th of August 1766. In 1768 he was appointed Lieut.-Governor of Gibraltar, where his regiment was at that period stationed. On the 25th of May 1772, Colonel Boyd was promoted to the rank of Major-General, and on the 29th of August 1777, was advanced to that of Lieut.-General. He was constituted a Knight of the Order of the Bath in 1784, in consideration of his services during the celebrated siege of Gibraltar. It was, according to his suggestion, that red-hot shot were used, as stated at page 32 of the Historical Record of the THIRTY-NINTH regiment. In 1790 Lieut.-General Sir Robert Boyd, K.B., was appointed Governor of that fortress, in succession to General Lord Heathfield, deceased. Sir Robert Boyd was appointed to the rank of General on the 12th of October 1793, and died in May of the following year, while holding the Governorship of Gibraltar. NISBETT BALFOUR. _Appointed 2nd July 1794._ This officer entered the army on the 27th of January 1761, as an ensign in the Fourth Foot, was promoted Lieutenant on the 15th of November 1765, and advanced to the rank of Captain in the regiment on the 26th of January 1770. He was at the battle of Bunker’s Hill on the 17th of June 1775, where he was wounded. Captain Balfour was present in the action on landing at Long Island and taking of Brooklyn, in August 1776. The capture of New York occurred shortly afterwards, on which occasion he was sent home by the Commander of the Forces in North America, Major-General the Honorable Sir William Howe, with the public despatches, and in consequence received the brevet rank of Major.