Barrington Papers. Vols. lxxxiii, lxxxiv Correspondence and papers relating to recruitment and augmentation, including various recruitment plans submitted to Lord Barrington; 1755-1780, n.d. Partly French, copies. Two volumes.
Barrington Papers. Vols. lxxiii-lxxviii. Correspondence and papers relating to Britain's relationship with Canada and America; includes Bills, narratives, letters etc. concerning the raising, quartering and supplying of troops, maintenance of forts, Boston riots, etc.; 1749-1778, n.d. Six volumes.
Barrington Papers. Vol. lxxix (ff. ). Correspondence and papers relating to Minorca and Gibraltar, including absenteeism, the supply of coal and the Court Martial of Maj. Gen. Thomas Fowke; 1750-1774, n.d. Partly copies.
Barrington Papers. Vols. lxxx, lxxxi. Correspondence and papers relating to the war with France; 1755-1763. Mostly French. Partly copies. See also Add. Ch. 76999, 77001. Two volumes.
Barrington Papers. Vol. lxxxii (ff. ). Correspondence and papers relating to the treaties with Hesse, Hanover and Hanau and the recruiting, paying and billeting of German troops; 1755-1775, n.d. Partly French, copies.
Barrington Papers. Vols. li-liii (ff. ). Correspondence and papers, mainly applications, relating to the Compassionate List and King's Letter; 1753-1774, n.d. Three volumes.
Barrington Papers. Vols. xix-l. Correspondence and papers relating to employment, including requests for patronage, promotions, appointments, memorials, buying and selling of commissions, etc. A small amount of material dates from times between and following Barrington's periods in office; 1756-1792, n.d. Partly French, copies, printed. Thirty two volumes.
Barrington Papers. Vols. lv-lxxii. Letters of acknowledgement and thanks addressed to Lord Barrington, mostly relating to patronage. Barrington only actively started preserving these letters from Michaelmas 1757, although a few survive from an earlier date. A small number of letters date from outside Barrington's periods of office; 1752-1778, n.d. Partly French. Eighteen volumes.