William Walton Museum
The William Walton Museum, at the composer's estate La Mortella at Forio d'Ischia, on the island of Ischia in the Bay of Naples, currently houses the following Walton manuscripts.
| All this time | Autograph score. | |
| Five Bagatelles for Guitar | Autograph score. | |
| Gloria | Revisions to brass parts | |
| The Quest | Piano score. | |
| Symphony No. 1 | Discarded sketches | |
| Variations on a Theme by Hindemith | One page of autograph score. | |
| Violin Sonata | Autograph score. |