| # | Cat. | Reference | Title | Year | |
|---|---|---|---|---|---|
| 1 | Arch | HOL/4 | Holst Foundation | 1981 | |
| 2 | Arch | HOL/4/3 | Holst Foundation Correspondence | 1938 | |
| 3 | Arch | HOL/6/2 | Holst Foundation papers | 1983 | |
| 4 | Arch | PH/6/507 | Peter Pears with guests of the G. and I. Holst Foundation at the Wentworth Hotel, Aldeburg... | 1978 | |
| 5 | Arch | PH/6/508 | Peter Pears with guests of the G. and I. Holst Foundation at the Wentworth Hotel, Aldeburg... | 1978 |
