| RefNo | Title | Source |
| DF/ZOO/213/113/18 | Sewell, R B Seymour: report on Copepoda (Volume VII/2) | |
| DF/ZOO/213/113/21 | Sewell, R B Seymour: correspondence with the Keeper of Zoology on publication of the "Scientific reports" | |
| DF/ZOO/213/113/7 | Sewell, R B Seymour: annotated typescript of the Introduction and list of stations (Volume I/1) | |
| DF/ZOO/232/6/14/13/12 | Seymour-Sewell, R.H. | |
| DF/ZOO/232/6/8/8/15 | [Sewell, R.H.] | |
| DF/ZOO/213/113/3 | Sewell, R B Seymour: correspondence about research on the expedition collections | |
| DF/ZOO/213/113/22 | Sewell, R B Seymour: correspondence with the Keeper of Zoology on publication of the "scientific reports", and of his own journal. | |
| DF/ZOO/213/113/2 | John Murray Expedition: correspondence of J S Gardiner, R B Seymour Sewell and others | |
| DF/ZOO/232/6/8/6/13 | Mus musculus | |
| DF/ZOO/232/6/10/16/3 | [Sewell, Lieutenant Colonel R H] | |
| DF/ZOO/213/112/8 | Great Barrier Reef Expedition: correspondence of Charles Anderson, Robert Gurney, Arthur R Hinks, Andrew P Orr, F A Potts, Sir Frederick S Russell, Robert B Sewell, Michael Spender and Sir Charles M Yonge | |
| DF/ZOO/213/113/1 | John Murray Expedition: correspondence of J S Gardiner, R B Seymour Sewell and others | |
| DF/ZOO/252/1/12/31 | Sewell, Robert Beresford Seymour - (Warminster & Chichester) | |
| DF/ZOO/230/122/119 | India: Zoological Survey of India, Indian Museum, Calcutta | |