Althorp Papers. Vol. mmcdxcvi. Outsize items containing reports of speeches by Spencer on the Irish Home Rule question and articles relating to this issue; June 1886.
Althorp Papers. Vol. mmcdxcvii. Correspondence and papers relating to the foundation of the National Rifle Association, including letters by Spencer, Lord Elcho, George Russell, Capt. Adam Gladstone and others; July 1859-Feb. 1860, n.d.
Althorp Papers. Vol. mmdiv. Miscellaneous papers, mostly relating to the manufacture and use of arms. Includes reports, memoranda of correspondence, etc. Also included is a programme for the 1868 NRA meeting at Wimbledon; circa 1865-1868. Printed.