| Reference Number | Title | Date | Series |
| RNT/SM/1/113 | Four to One | 1977 | Prompt Scripts |
| RNT/CO/1/86 | Four to One | 1976 | Costume Department Production Files |
| RNT/PR/3/113 | Four to One | 1977 | Rehearsal and Production Photographs |
| RNT/PR/4/1/127 | Four to One | May 1977 - June 1977 | Press Production Review Files |
| RNT/SM/2/1/71 | Four to One | 1976 | Pre-South Bank Show Reports |
| RNT/PO/1/1/4 | Four to One | 1977 | Cottesloe Production Office Show Files |
| CF/8/49 | Four To One | 1976 | Scripts |
| RNT/PR/2/1/157 | National Theatre summer season at the Young Vic | 21 July 1976 | Press Releases 1960-1979 |
| RNT/PP/5/45 | Four to One | 1977 | Rehearsal Photographs |
| RNT/PP/1/1/334 | Four to One | 5 August 1976 | Pre-South Bank Programmes |
| RNT/PR/4/1/103 | Troilus and Cressida / The Man Himself / Emigres / Bread / Bridget's House / They Are Dying Out / Four to One | May 1976 - October 1976 | Press Production Review Files |
| RNT/PP/2/4/5 | Four to One | 18 May 1977 | Cottesloe Posters |
| RNT/PP/1/4/5 | Four to One | 18 May 1977 | Cottesloe Programmes |