Althorp Papers. Vol. mcmlxviii-mcmlxx. Incomplete indexes to correspondence in Add. MSS 76928-76937 above with Sir William Harcourt; 1882-1894. Three volumes.
Althorp Papers. Vol. mcmlxxi-mcmlxxiii. Indexes to correspondence in Add. MSS 76887-76900 above with the Marquis of Hartington; 1870-1873. Three volumes.
Althorp Papers. Vols. mcmlxxvi-mcmlxxxiv. Incomplete indexes to correspondence in Add. MSS 76944-76967 above with Sir George Trevelyan; 1882-1894. Nine volumes.
Althorp Papers. Vols. mcmlxxxviii, mcmlxxxix. Incomplete index to correspondence in Add. MSS 77057-77061 above with Sir R. G. C. Hamilton; 1882-1884. Two volumes.
Althorp Papers. Vols. mcmxcv-mmii. Correspondence, mostly of Spencer, and papers relating to various issues; 1869-1889, n.d. Partly copies. Included are indexes to some sections of the correspondence, probably compiled by secretaries. Eight volumes.
Althorp Papers. Vols. mmvii, mmviii. Cuttings and pages containing letters and articles from various Irish and English newspapers and journals, mostly relating to the Irish land question; 1869-1870. Arranged alphabetically by the authors or subjects of the articles, this being the original arrangement. Two volumes. The cuttings are mounted onto pieces of paper (original format).
Althorp Papers. Vols. mmxxi-mmxxv. Papers and correspondence, mostly of Spencer, relating to the Irish land question and the associated parliamentary bills and legislation of 1884-1886; 1882-1886. Partly printed. Included are autograph notes and memoranda by Spencer. Five volumes.
Althorp Papers. Vols. mmxxvi-mmxxviii. Drafts, summaries etc. and newspaper cuttings of political speeches, and correspondence and papers mostly concerning the administration of Ireland and the Government of Ireland Bill, 1886 (First Home Rule Bill); [circa 1885]-1886. Partly printed. See also Northamptonshire Record Office, SOX80; 1887 Three volumes.
Althorp Papers. Vols. mmxxx, mmxxxi. Various papers, including memoranda, printed drafts of bills and correspondence mostly relating to judicial and law enforcement matters; 1880-1885. Partly printed. Included are autograph notes by Spencer.