| RefNo | Title | Date |
| NL/29/2 | Edward Grey letters to Neville Lyttelton | 1899, 1911 |
| NL/29 | Friends letters to Neville Lyttelton | 1883-1911 |
| NL/32/4 | Sir Edward Grey letters to Katherine Lyttelton | 1909-1910 |
| NL/32 | Sir Edward Grey letters to Katherine Lyttelton | 1896-1933 |
| NL/32/9 | Sir Edward Grey letters to Katherine Lyttelton | c.1914-1918 |
| NL/37/24 | Sir Edward Grey, group letter | 1921 |
| NL/32/7 | Sir Edward Grey letters to Katherine Lyttelton | 1916-1919 |
| NL/32/5 | Sir Edward Grey letters to Katherine Lyttelton | 1911-1912 |
| NL/32/2 | Sir Edward Grey letters to Katherine Lyttelton | 1907 |
| NL/32/6 | Sir Edward Grey letters to Katherine Lyttelton | 1913-1915 |
| NL/32/8 | Sir Edward Grey letters to Katherine Lyttelton | 1920-1933 |
| NL/32/1 | Sir Edward Grey letters to Katherine Lyttelton | 1896-1906 |
| NL/32/3 | Sir Edward Grey letters to Katherine Lyttelton | 1908 |
| NL/38/24 | Newspaper articles and book extracts | 1897-1933 |
| NL/38/28 | Photographs | 1905-1928 |
| NL | LYTTELTON FAMILY | c.1782-1940 |
| NL/GRE/33/16 | Photographs of Lyttelton family friends | c.1899-1919 |