Ivar Jorgensen
4 appearances across 4 restored issues — every one readable in full, free.
Amazing Stories, October 1952 — 1952 “THE BLESSED ASSASSINS” · p.96 Read the full issue (164 pages) → 
Amazing Stories, February 1953 — 1953 “The Curse” · p.114 Read the full issue (164 pages) → 
Amazing Stories, September 1955 — 1955 “THE GENIUS” · p.93 Read the full issue (133 pages) → 
Amazing Stories, July 1968 — 1968 “THE GENIUS” · p.91 Read the full issue (148 pages) → Appearances are extracted from each issue's own printed contents page; entries we can't read confidently are withheld rather than guessed.