Althorp Papers. Vol. mmdccvii. Catalogue of Georgiana, Countess Spencer's library at Holywell House, St. Albans. It was formed from the books which were saved from the fire at Wimbledon; 1785.
Althorp Papers. Vol. mmdccix. Catalogue of the pamphlets in the library at Althorp on the Civil and Ecclesiastical affairs of Great Britain and Ireland in chronological order; [circa 1805?].
Althorp Papers. Vol. mmdccx. List of books in the Althorp library compiled by C. Bruce. Included are notes on individual books and on the formation of the library; 1875.
Althorp Papers. Vol. mmdccxiii. George Appleyard's catalogue of the books which belonged to William Stephen Poyntz and were inherited by his daughter, Isabella, Marchioness of Exeter; n.d.
Althorp Papers. Vol. mmdccxvi. Catalogue of the library at Holywell House, St. Albans, belonging to Georgiana, Countess Dowager Spencer. Many of the books are supposed to have been given to Frederick, 4th Earl Spencer when he married in 1830 and formed part of the library at Harlestone House; n.d.