The Dublin Review of Books has an interesting article by Robin Wilkinson on Lord Dunsany, particularly covering The Curse of the Wise Woman (1933). It is titled "Dunsany's Careless Abundance" and is available here.
A snippet:
In his autobiographical Patches of Sunlight (1938), Dunsany recalls the day he discovered the tales of Edgar Allan Poe in the school library, and straightway read them all, enthralled by ‘the haunted desolation and weird gloom of the misty mid-region of Weir’. He salutes his American cousin once again in The Curse of the Wise Woman, which includes Poe’s description of ‘soulless dissipation’ at Eton, the English boarding school that Poe himself did not attend, although as it happens both Charles [a character in The Curse of the Wise Woman] and Dunsany did. The passage he quotes is taken from William Wilson, Poe’s doppelgänger tale of a young man of noble ancestry haunted by his unrelated twin, a second self who follows him everywhere, much as Charles follows in the footsteps of his creator.