Received this enquiry by email -
I'm writing about the poet Jack Clemo, whom Johnson published in the Transatlantic Review a few times. It's probably a long shot, but I wondered whether someone might know if he mentioned Clemo in any letters or documents. Margaret Drabble wrote about Clemo in a few of her books, and it's quite possible that Johnson introduced her to Clemo's poetry.
As I say, I know it's a long shot, but it would interest me very much.