Althorp Papers. Vols. mmlxvii-mmlxxv. Miscellaneous political papers relating to various legislative issues and general political matters; 1857-circa 1910. Included are a few autograph notes by Spencer. Partly printed. Nine volumes.
Althorp Papers. Vol. mmliv-mmlxiii. Papers, including printed drafts of bills, concerning domestic legislation and policies; 1874-1895. Mostly printed. Ten volumes.
Althorp Papers. Vols. mcmxcv-mmxxxvii. Administrative papers and official correspondence relating to Ireland from the four Liberal governments between 1868 and 1895, mostly from the two periods during which Spencer served as Viceroy of Ireland, 1868-1874 and 1882-1885; 1868-1895, with a few papers earlier in date. Included are autograph drafts of memoranda and letters by Spencer and copies of letters by him, a few being autograph. See also Northamptonshire Record Office, SOX84, SOX335, SOX35...
Althorp Papers. Vol. mmxxxix-mmxliii. Miscellaneous papers and pamphlets relating to Spencer's two terms as Viceroy of Ireland; 1868-1895, n.d. Partly printed. Five volumes.
Althorp Papers. Vols. mmxliv-mmliii. Foreign Office papers; 1880-1896. Printed. A few documents are in French. Most of the papers are Cabinet circulars and include printed copies of correspondence, memoranda and reports, with a few pamphlets and books. Ten volumes.