Althorp Papers. Vol. mdxxvii. Letters from Frederick Beauchamp Paget Seymour, later Baron Alcester of Alcester, Charlotte Spencer's cousin; 1852-1885, 1894.
Althorp Papers. Vol. mdxxviii. Correspondence with Luke White, 3rd Baron Annaly. Annaly was married to Charlotte Spencer's niece Lilah, daughter of 3rd Viscount Clifden; 1888, 1895-1910, n.d.
Althorp Papers. Vol. mdccxcvi. Correspondence with Sir Francis Philip Cunliffe-Owen, Assistant Director of the South Kensington Museum (1860-1873), Director of the South Kensington Museum (1873-1892), commissioner for various international exhibitions; 1880-1892.
Althorp Papers. Vol. mdcccxviii. 1. Correspondence with Andrew Reid, journalist and political writer; 1885-1888. 2. Letters and pamphlets from with Harold Cox, journalist, Secretary of the Cobden Club; afterw. M.P. for Preston (1906-1909); 1902-1905.
Althorp Papers. Vol. mdcccxxv. 1. Correspondence with Rev. Frederick Ponsonby, Rector at Great Brington, (1868-circa 1875); 1867-1877, 1881-1888, n.d. 2. Letters from Rev. Henry Holmes Stewart, M.A., Rector at Great Brington; [circa 1881]- 1898, n.d. Mostly undated.
Althorp Papers. Vol. mdcccxxxi. 1. Correspondence with Rev. A. H. Atwood, Vicar of Ashelworth near Gloucester, later Rector of Hinton near Brackley, co Northant.; 1852-1868. 2. Letters from Rev. George Atwood, son of the above, Rector at Hinton; 1861, 1868, 1883-1903, n.d. 3. Letters from Rev...
Althorp Papers. Vol. mdcccxxxiii. Letters from Rev. Thomas James of Theddingworth, Rugby, relating partly to the Clipston Trust. Includes a few letters by his sister, Rebecca; 1858-1863, n.d. Mostly undated.