For which magazine did the author of the novel "Burn Witch Burn!" serve as an editor?
A. Merritt Abraham Grace Merritt (January 20, 1884 – August 21, 1943) – known by his byline, A. Merritt – was an American Sunday magazine editor and a writer of fantastic fiction.
Henry Mills Alden Henry Mills Alden (November 11, 1836 – October 7, 1919) was an American author and editor of "Harper's Magazine" for fifty years—from 1869 until 1919.