| RefNo | Title | Date |
| NL/8/10 | Katherine Lyttelton letters to Neville Lyttelton | 1904-1907 |
| NL/2/12 | Neville Lyttelton letters to Katherine Lyttelton | 1907-1909 |
| NL/1/3 | Neville Lyttelton letters to family | 1876-1884 |
| NL/2/11 | Neville Lyttelton letters to Katherine Lyttelton | 1902-1906 |
| NL/24/11 | Family letters to Katherine Lyttelton | 1900-1905 |
| NL/2 | Neville Lyttelton letters to Katherine Lyttelton | 1883-1926 |
| NL/1/6 | Neville Lyttelton letters to family | 1893-1909 |