| RefNo | Title |
| KMAN1/A/49/3/5 | Commission of Sir John Cust, Deputy Lieutenant of the County of Huntingdonshire |
| KMAN1/A/10/30/6 | Schedule of Weybridge deeds, with the Forest or Park, the property of Robert Duke of Manchester |
| KMAN1/A/49/9/1 | Letter to the Duke of Manchester from Joseph Sharpe, Lincolns Inn |
| KMAN1/A/49/9/2 | A Scheme for the Perpetual Agreement and Alliance between His Grace the Duke of Manchester and Coulson Fellowes Esq. |
| KMAN1/A/49/7/9 | Letter to the Duke of Manchester from F. Otway, Riverhill [Kent] |
| KMAN1/A/49/1/5 | Account of the numbers of men returned from each Huntingdonshire parish to serve in the militia |
| KMAN1/A/43/5 | Two title deeds to the Manchester estates |
| KMAN1/A/49/1/6 | Copy extract from a letter to the Post Master of Brough [?Cumbria] from Mr. Cowper, Penrith [Cumbria] |
| KMAN1/A/49/7/16 | Letter to the Duke of Manchester from the Earl of Fauconberg, Newborough [Yorks] |
| KMAN1/A/10/30/5 | Account of estates bought by Robert Duke of Manchester between 1741 and 1751 |
| KMAN1/A/49/7/8 | Signed declaration by Edward Ashwell, Minister, that a record of the marriage of Lord Robert Montagu and Miss Harriet Dunch appears in the register of St Sepulchre, London |
| KMAN1/B/48/3 | Household receipt book |
| KMAN1/A/47/7/6 | Appointment or will of Harriet Duchess of Manchester |
| 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 |
| KMAN1/A/49/7/1 | Letter to the Duke of Manchester from Philip Laxton, Vilverden[?] Camp [Netherlands] |
| KMAN1/A/49/7/2 | Letter to the Duke of Manchester from Joseph York, Hague [Netherlands] |
| KMAN1/A/49/7/3 | List of cities in the Netherlands, Brussells and Germany |
| KMAN1/A/49/7/6 | Letter to the Duke of Manchester from his brother in law, Sir George Oxenden, Deane [?Kent] |
| KMAN1/A/49/7/7 | Letter to the Duke of Manchester from his brother in law, Sir George Oxenden, Deane [?Kent] |
| KMAN1/A/49/7/10 | Letter to the Duke of Manchester from F. Otway, Riverhill [Kent] |
| KMAN1/A/47/77 | Letter to the Duke of Manchester from F. Otway, Riverhill [Kent] |
| KMAN1/A/49/7/12 | Letter to the Duke of Manchester from F. Otway, Kensington [London] |
| KMAN1/A/49/7/13 | Letter to the Duke of Manchester from F. Otway, Kensington [London] |
| KMAN1/A/49/7/14 | Letter to the Duke of Manchester from F. Otway, Milan and Verona [Italy] |
| KMAN1/A/49/7/15 | Letter to the Duke of Manchester from F. Otway, Berkeley Square [London] |