Question: What is the date of death of the editor of magazine Other Worlds, Universe Science Fiction, And Science Stories?
Sentence (from "Raymond A. Palmer"): In addition to magazines such as "Mystic,Search," and "Flying Saucers", he published or republished numerous spiritualist books, including , as well as several books related to flying saucers, including "The Coming of the Saucers", co-written by Palmer with Kenneth Arnold.
Relevant evidence: No