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. Vols. mmccclxxxii, mmccclxxxiii. Letters to Lady Spencer from Major Landon, Hon. Sec. of the Northamptonshire branch of The Soldiers' and Sailors' Families Association. Includes various additional papers including speeches by Lady Spencer, leaflets etc.; 1883-1903, n.d. Partly printed. Two volumes.
Althorp Papers. Vols. mdccxxix, mdccxxx. Letters from John Roche Dasent; Private Secretary ([circa 1880]-1885), Assistant Secretary to the Board of Education ([circa 1885]-1908); [circa 1881]-1908. Two volumes.