| RefNo | Title | Date |
| NL/GRE/33/21 | Photographs of Lyttelton family and various locations | c.1917 |
| NL/GRE | Grenfell Family Papers | 1800s-1962 |
| NL/GRE/12/4 | Harry Grenfell letters to family | 1938-1950 |
| NL/GRE/12 | Harry Grenfell letters to family | 1926-1950 |
| NL/GRE/14 | Letters about Harry Grenfell | 1928-1944 |
| NL/GRE/14/1 | Correspondence about Harry Grenfell | 1928-1944 |
| NL/GRE/1/9 | Hilda Grenfell letters to Harry Grenfell | 1928-1929 |
| NL/GRE/32/9 | Photographs of Grenfell family | 1899-1955 |
| NL/GRE/13/4 | Harry Grenfell letters to Hilda Grenfell | 1932-1948 |
| NL/GRE/13 | Harry Grenfell letters to Arthur Grenfell and Hilda Grenfell | 1913-1948 |
| NL/GRE/12/2 | Harry Grenfell letters to family | 1926-1936 |
| NL/GRE/13/1 | Harry Grenfell letters to Arthur Grenfell and Hilda Grenfell | 1913-1920s |
| NL/GRE/12/3 | Harry Grenfell letters to family | 1933-1944 |
| NL/GRE/13/3 | Harry Grenfell letters to Arthur Grenfell and Hilda Grenfell | 1929 |
| NL/GRE/13/2 | Harry Grenfell letters to Arthur Grenfell and Hilda Grenfell | 1920s |
| NL/GRE/12/1 | Harry Grenfell letters to family | 1926-1927 |
| NL/GRE/32/11 | Photographs of Sybil Grenfell, Reginald Grenfell and Harry Grenfell | c.1903-1920 |