Althorp Papers. Vols. mdccci-mdcccv. Correspondence with John George Brabazon, 5th Earl of Bessborough. Also includes material relating to the Clifden Trust (see Clifden below); 1857-1879, n.d. For original index see KS504. Five volumes.
Althorp Papers. Vols. mmlxxxix, mmxc. Correspondence of Spencer with Admiral Sir Michael Culme-Seymour, Commander-in-Chief in the Mediterranean (1893-1897); 1893-1895. Two volumes.
Althorp Papers. Vols. mmxcii, mmxciii. Correspondence of Spencer with Vice-Admiral Sir Edmund Fremantle, Commander-in-Chief, China; 1893-1895. Two volumes.
Althorp Papers. Vols. mmlxxxii-mmlxxxvi. Letters to Spencer from Sir Ughtred Kay-Shuttleworth, M.P., Parliamentary Secretary to the Admiralty, with a few copies of letters from Spencer to Kay-Shuttleworth; 1892-1895. Included are a few letters from Kay-Shuttleworth to W. Graham Greene and a letter from Kay-Shuttleworth's wife, Blanch, to Spencer (26 March 1893). A few letters of Kay-Shuttleworth are signed and are in the hands of his wife and others, probably his secretaries. Five volumes.