| RefNo | Title |
| EUL MS 265 | Papers relating to the library and its readership at Syon Abbey |
| EUL MS 389 | Syon Abbey archive |
| EUL MS 394 | Papers relating to the Syon Reliquary and Marion Glasscoe's relationship with Syon Abbey |
| EUL MS 459 | Photocopy of a letter from Sister Catherine Witham of Syon Abbey to her mother in 1763 |
| EUL MS 499 | Book entitled 'Officium Hebdomadae Sanctae Secundum Missale & Breviarium Romanum' with inscriptions by Sister Catherine 'Kitty' Witham of Syon Abbey |
| EUL MS 262 | Syon Abbey medieval and modern manuscript collection |
| EUL MS 95 | Papers of Canon John Rory Fletcher relating to the history of Syon Abbey |