Stanton A. Coblentz
3 appearances across 3 restored issues — every one readable in full, free.
Amazing Stories, Vol. 8, No. 6 — 1933 “The Men Without Shadows” · p.491 Read the full issue (148 pages) → 
Amazing Stories, August 1934 — 1934 “In the Footsteps of the Wasp” · p.91 Read the full issue (148 pages) → 
Amazing Stories, February 1937 — 1937 “NOISE” · p.107 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.