On the 30th of October 1818, the regiment embarked at Calais, disembarked at Dover on the 31st, and marched to Portsmouth, where it arrived on the 11th of November. The THIRTY-NINTH regiment embarked for Ireland on the 17th of December following, arrived at Cork on the 24th, and disembarked on the 26th of that month. [Sidenote: 1819.] The regiment proceeded on its route for Castlebar in the county of Mayo, where it arrived on the 7th of January 1819. [Sidenote: 1820.] The THIRTY-NINTH marched from Castlebar to Dublin in August 1820, and arrived at its destination on the 17th of that month. [Sidenote: 1821.] In March 1821, the regiment was removed from Dublin to Cork. On the 24th of August 1821, the establishment of the regiment was reduced from ten to eight companies, of three serjeants and seventy-two rank and file each; and on the 26th of November it marched from Cork to Tralee. [Sidenote: 1822.] In January 1822, some detachments of the regiment were employed in suppressing a partial insurrection of the Whiteboys. Brevet-Major George D’Arcy was attacked at Millstreet, in the county of Cork, and beat off considerable bodies of the insurgents. Brevet-Major Charles Carthew was also engaged with a large body of them near Bantry, when one private of the regiment was killed. [Sidenote: 1823.] The regiment marched, on the 1st of October 1823, from Tralee to Limerick. Lieut.-General Sir George Airey, K.C.H., was appointed colonel of the THIRTY-NINTH regiment on the 28th of October 1823, in succession to General Nisbett Balfour, deceased. [Sidenote: 1824.] On the 12th of August 1824, Brevet Lieut.-Colonel Patrick Lindesay, C.B., was appointed Lieut.-Colonel of the THIRTY-NINTH regiment, in consequence of the retirement of Colonel Cavendish Sturt; Brevet-Major Donald M^cPherson succeeded to the vacant majority. The regiment marched to Buttevant, in the county of Cork, in the beginning of October 1824, and in this place was at length brought together, having been continually broken into small detachments during the whole of its service in Ireland, with the exception of a few months while stationed in Dublin. [Sidenote: 1825.]