The following institutions hold collections related to Manchester:
British Library, British Museum, Bodleian Library, Cambridgeshire Archive Service, National Maritime Museum (London), Sheffield Archives, and University of Nottingham Library
The Manchester papers have been listed, but not published, in the Historical Manuscripts Commission Eighth Report , Appendix Part II, Nos. 946-1287, 1881.
Cannon, John, "Montagu, George, fourth duke of Manchester (1737--1788)," Oxford Dictionary of National Biography , Oxford University Press, 2004 [http://www.oxforddnb.com/view/article/19016, accessed 17 Feb 2011]