Note: Possible pseudonym: Mike Ashley in Transformations: The Story of the Science-fiction Magazines from 1950 to 1970 points to 'Jarr' being a pseudonym of Terry Maloney; Philip Stephensen-Payne mentions Jarr as being Terry Maloney "and possibly one other artist", 'Kenneth Johns' (Ken Bulmer & John Newman) in Science Fantasy #43 talks about a new "team" signing their art "Jarr".