Althorp Papers. Vol. mmdccxxxvii. Notes by Frederick, 4th Earl Spencer, concerning the subjects of some of the portraits at Althorp; 19th cent. includes: ff. 47v-52v Edward Bruce, 2nd Baron Kinloss: Correspondence with T. Sackville, Lord Buckhurst: 1613: Copies.
Althorp Papers. Vol. mmdccxl. List of applications made to the trustees of Marlborough Buildings, St Albans by prospective in-mates; 1845-1867, with later additions.
Althorp Papers. Vol. mmdccxli. Return book of the billiards games played at Althorp between Earl Spencer, the Hon. Spencer Lyttleton and others; Nov. 1850-1855.