| RefNo | Title | Date |
| HB/E/10/5 | Harlequin Ballet Company \ Correspondence \ 1969-1970 | 1969-1970 |
| HB/E/10/6 | Harlequin Ballet Company \ Correspondence \ Appeals for Funding | 1960-1968 |
| HB/E/10/8 | Harlequin Ballet Company \ Correspondence \ Television Companies | 1961-1965 |
| HB/E/10/1 | Harlequin Ballet Company \ Arts Council of Great Britain \ Enquiry | 1962-1968 |
| HB/E/25/10 | John Gregory's Writing \ Obituaries | 1990s |
| HB/E/10/4 | Harlequin Ballet Company \ Correspondence \ 1967-1968 | 1967-1968 |
| HB/E/10/3 | Harlequin Ballet Company \ Correspondence \ 1964-1966 | 1964-1966 |
| HB/E/13/6 | Harlequin Ballet Company \ Reports | 1962-1969 |
| HB/E/10/7 | Harlequin Ballet Company \ Correspondence \ Fight for Survival | 1967-1970 |
| HB/E/10/2 | Harlequin Ballet Company \ Correspondence \ 1959-1963 | 1959-1963 |
| HB/E/11/1 | Harlequin Ballet Company \ Correspondence \ Special Letters | 1959-1969 |