| RefNo | Title |
| KMAN1/A/10/30/6 | Schedule of Weybridge deeds, with the Forest or Park, the property of Robert Duke of Manchester |
| KMAN1/A/10/30/5 | Account of estates bought by Robert Duke of Manchester between 1741 and 1751 |
| KMAN1/B/48/3 | Household receipt book |
| KMAN1 | Records of the Montagu family of Kimbolton Castle |
| KMAN1/A/12/5/1 | Letter to the Duke of Manchester from William Custance, Somersham |
| KMAN1/A/13/5/16 | Mortgage |
| KMAN1/A/13/5/12 | Release |
| KMAN1/A/13/5/17 | Bargain and sale |
| KMAN1/B/48/1 | Dorchester Estate account book: Mr. Barlow Lawrence in account with Sir George Oxenden and Lord Robert Montagu |
| KMAN1/B/48/2 | Dorchester Estate account book: Mr. Barlow Lawrence in account with Sir George Oxenden, Mr Thompson and Lord Robert Montagu |
| KMAN1/A/28/8/8 | Letter to the Duke of Manchester from Savile Cust, Stilton |
| KMAN1/A/28/8/10 | Rent roll of the Duke of Manchester's Huntingdonshire estates |
| KMAN1/A/28/8/9 | Letter to the Duke of Manchester from Savile Cockayne Cust |
| KMAN1/A/36/22b | Scrapbook containing cuttings of printed works referring to history and geneology of the Montagu family |
| KMAN1/A/32/5/31 | Table showing "turns of waiting of the Gentlemen of the Bed Chamber" |
| KMAN1/A/32/5/33 | Menu for a dinner of the Lords of the Bedchamber on 9 October 1756 |
| KMAN1/A/32/5/50 | List of the children of Robert late Duke of Manchester and of his duchess Harriet nee Dunch |
| KMAN1/A/32/7/9 | Letter from Jane Taylor, Windsor [Berks], to the Duke of Manchester |
| KMAN1/A/32/7/27 | Letter to the Duke of Manchester from John Forster, Peterborough |
| KMAN1/A/32/7/10 | Letter to the Duke of Manchester from Mr. Huske, George Inn |
| KMAN1/A/32/7/22 | Letter to the Duke of Manchester from George Oxendon, Wittenham [Berks] |
| KMAN1/A/32/7/23 | Letter to the Duke of Manchester from John Forster, Grays Inn |
| KMAN1/A/32/7/24 | Letter to the Duke of Manchester from John Cole, Fenton |
| KMAN1/A/32/7/26 | Letter to Mr Custance, steward of the Duke of Manchester's estate at Somersham, from Mrs Broxholme [or Broxolme], Hampton |
| KMAN1/A/32/7/28 | Letter to the Duke of Manchester from John Forster, Grays Inn |