Correspondence with Mary Eleanor Anne Fox-Strangways, wife of Henry, 5th Earl of Ilchester. The letters from Lady Holland to Lady Ilchester are all originals.
Letters from:- (1) Henry Petty-Fitzmaurice, Earl of Shelburne, 4th Marquess of Lansdowne 1863; 1839-1866. (ff. 1-79b). (2) Henry Charles Keith Petty-Fitzmaurice, Earl of Kerry, 5th Marquess of Lansdowne 1866; 1863-1882. (ff. 80-127). (3) Lord Edmond George Petty-Fitzmaurice (Baron Fitzmaurice 1...
Letters from Emily Jane Mercer Elphinstone Petty-Fitzmaurice, née de Flahault, 6th Baroness Nairne 1862, wife (1843) of Henry Fitzmaurice, Earl of Shelburne, 4th Marquess of Lansdowne 1863.
General correspondence of Mary Augusta, Lady Holland, followed (Add MS 52163, f. 229) by an inventory, 31 July 1890, of the contents (mostly manuscripts) of the drawers in the library table at Holland House. Seven volumes.