In the undergraduate journal The Lectern #3 (2023), “Edgar Allen Poe and H.P. Lovecraft: The Language of Madmen”.
And also note Horror Homeroom #7 (2023), a special on the archival and ‘found material’ tendencies in various forms of horror. This has the short lead essay “A Weird Bunch of Cuttings: Newspaper Clippings as Lovecraftian Found Footage”. The author is aware that Lovecraft’s correspondents occasionally sent him cuttings, but not that he was sorting and ordering his large ‘mounded’ cuttings collection into pasted scrapbooks at around the time of writing “Cthulhu”.