William Clement Henry Esdaile, great-grandson of Percy Bysshe Shelley. Shelley's manuscript notebook of juvenilia, dubbed "The Esdaile Notebook," was in the possession of Esdaile's family until 1962, when it was sold by his sister, Lettice A. Worrall. The notebook is now held by the Pforzheimer Collection.
From the description of William Clement Henry Esdaile manuscript material : 1 item, 1948 (New York Public Library). WorldCat record id: 185100443
From the guide to the William Clement Henry Esdaile manuscript material : 1 item, 1948, (The New York Public Library. Carl H. Pforzheimer Collection of Shelley and His Circle.)