| RefNo | Title | Source |
| WP/15/3 | Obituaries and Memoirs of William Mitten | |
| WP/1/5/40 | Letter from Alfred Russel Wallace to William Mitten | |
| WP/16/2/39 | Letter to William Greenell Wallace from Museum of the History of Science, Old Ashmolean Building, Oxford | |
| WP/15/2/12 | Reid, Clement, 'The Eocene deposits of Devon' | |
| WP/15/2/1 | Reid, Clement, 'On the natural history of isolated ponds' | |
| WP/1/5/38 | Letter from Alfred Russel Wallace to William Mitten | |
| WP/1/4/5 | Alfred Russel Wallace to Annie Wallace, from Hotel du Glacier Du Rhone, Switzerland | |
| WP/1/4/6 | Alfred Russel Wallace to Annie Wallace, from Hotel de Balances, Lucerne, Switzerland, | |
| WP/15/2/6 | Reid, Clement, 'The early Neolithic kitchen-midden and tufaceous deposit at Blashenwell, near Corfe Castle' | |
| WP/15/2/19 | 'Linnean Society of New South Wales. Abstract of Proceedings, April 25th 1894' | |
| WP/1/9/46 | Bishop Hannington to William Mitten | |
| WP/15/3/2 | Obituary by Edward Morell Holmes | |
| WP/1/1/60 | Letter from Alfred Russel Wallace to his son William Wallace, from Parkstone, Dorset | |
| WP/1/2/45 | Alfred Russel Wallace to Violet Wallace, from Parkstone, Dorset | |
| WP/1/5/5 | Letter from Alfred Russel Wallace to William Mitten | |
| WP/1/4/8 | Alfred Russel Wallace to Annie Wallace, from Hotel du Sauvage, Meiringen, Switzerland | |
| WP/1/4/7 | Alfred Russel Wallace to Annie Wallace, from Grimsel Hospice, Switzerland | |
| WP/15/2/7 | Sir John Evans, Miss E Morse, Clement Reid, E P Ridley and H N Ridley, 'The relation of Palaeolithic man to the Glacial epoch...' | |
| WP/1/2/94 | Alfred Russel Wallace, with an addendum by Annie Wallace, to Violet Wallace, from Parkstone, Dorset | |
| WP/1/2/132 | Post-script to a letter from Alfred Russel Wallace to Violet Wallace, [from Parkstone, Dorset] | |
| WP/15/1/6 | C E Larter to Miss Mitten | |
| WP/1/1/125 | Letter from Alfred Russel Wallace to his son William Wallace, from Broadstone, Dorset | |
| WP/15/2 | Mitten papers: Print | |
| WP/1/5/23 | Letter from Alfred Russel Wallace to William Mitten | |
| WP/15/2/5 | Reid, Clement, 'On charred pine-wood from Dorset peat mosses' | |
| WP/15/2/10 | Reid, Clement, 'The Palaeolithic deposits at Hitchin and their relation to the glacial epoch' | |
| WP/1/3/130 | Letter from Alfred Russel Wallace to Mitten, from Parkstone, Dorset | |
| WP/1/3/57 | Letter from Richard Spruce to Mrs Sims (Frances Wallace) | |
| WP/15/3/6 | William Mitten - obituary | |
| WP/15/2/3 | Reid, Clement, 'A fossiliferous pleistocene deposit at Stone, on the Hampshire coast' | |
| WP/15/2/15 | Barnes, Charles R, 'The progress and problems of plant physiology' | |
| WP/15/2/16 | Kirk, T, 'The displacement of species in New Zealand' | |
| WP/15/2/20 | 'Linnean Society of New South Wales. Abstract of Proceedings, May 30th 1894' | |
| WP/15/3/5 | Sepia photo of elderly man, apparently William Mitten | |
| WP/15/2/8 | Reid, Clement 'The Eocene deposits of Dorset' | |
| WP/15/1/5 | Alfred Russel Wallace to William Mitten | |
| WP/15/2/2 | Reid, Clement, 'On the Pleistocene deposits of the Sussex coast' | |
| WP/15/2/11 | Reid, Clement, 'Pleistocene plants from Casewick, Shacklewell, and Grays' | |
| WP/1/2/74 | Alfred Russel Wallace to Violet Wallace, from Parkstone, Dorset | |
| WP/15/4/1 | Loose dried plant (grass) specimens [Apera species] | |
| WP/1/2/50 | Alfred Russel Wallace to Violet Wallace, from Parkstone, Dorset | |
| WP/1/2/80 | Alfred Russel Wallace to Violet Wallace, from Parkstone, Dorset | |
| WP/1/3/58 | Letter from Richard Spruce to Alfred Russel Wallace | |
| WP/1/3/82 | Letter from Alfred Russel Wallace to his sister Fanny | |
| WP/15/2/9 | Reid, Clement, 'Supplementary note (February, 1897) on the worked-flints from Blashenwell, near Corfe Castle' | |
| WP/1/5/6 | Letter from Alfred Russel Wallace to his wife Annie | |
| WP/1/5/12 | Letter from Alfred Russel Wallace to his wife Annie | |
| WP/15/4/2 | Postcard, sepia photo captioned 'Cowdray. Hurstpierpoint J. Booker Series' | |
| WP/15/1/4 | Clement Reid to William Mitten | |
| WP/1/1/185 | Letter from Alfred Russel Wallace to his son William Wallace, from Broadstone, Dorset | |
| WP/1/4/9 | Alfred Russel Wallace to Annie Wallace, from Parkstone, Dorset | |
| WP/1/1/172 | Letter from Alfred Russel Wallace to his son William Wallace, from Parkstone, Dorset | |
| WP/1/4/20 | William Mitten to his daughter Annie Wallace from Hurstpierpoint | |
| WP/15/3/4 | Obituary by William Edward Nicholson | |
| WP/15/1/3 | William Mitten to his daughter | |
| DF/BOT/404/1/5/59 | Mitten | |
| WP/15/4 | Mitten papers: Ephemera | |
| WP/1/4/12 | Alfred Russel Wallace to Annie Wallace, from Parkstone, Dorset | |
| WP/15/2/4 | Reid, Clement, 'The origin of Megaceros-Marl' | |
| WP/15 | Papers of William Mitten | |
| WP/15/2/13 | Reid, Clement, 'Further contributions to the geological history of the British flora' | |
| WP/1/5/37 | Letter from Alfred Russel Wallace to William Mitten | |
| WP/15/3/1 | Obituary by William Botting Hemsley | |
| WP/1/1/61 | Letter from Alfred Russel Wallace to his son William Wallace, from Parkstone, Dorset | |
| WP/1/4/4 | Alfred Russel Wallace to Annie Wallace, from Parkstone, Dorset, | |
| WP/1/5/29 | Letter from Alfred Russel Wallace to William Mitten | |
| WP/1/5/39 | Letter from Alfred Russel Wallace to William Mitten | |
| WP/1/5/43 | Letter from Alfred Russel Wallace to his father in law William Mitten | |
| WP/15/3/3 | Obituary by Edward Morell Holmes | |
| WP/2/1/24 | William and Ann Mitten, portraits | |
| WP/15/1/1 | William Harvey to Joseph Hooker | |
| WP/15/1/2 | Alfred Russel Wallace to William Mitten | |
| WP/15/2/18 | 'Linnean Society of New South Wales. Abstract of Proceedings, March 28th, 1894' | |
| WP/15/2/21 | 'The House Sparrow (Passer domesticus, Linnaeus)' by Eleanor A Ormerod and W B Tegetmeier | |
| WP/17/34 | Treeps - Mitten family home | |
| WP/17/85 | Watercolour drawing of tropical coast and trees | |