Harold Helfer
3 appearances across 3 restored issues — every one readable in full, free.
15 Story Detective, April 1950 — 1950 “Full Steam to Nowhere” Read the full issue (132 pages) → 
5 Detective Novels Magazine Cover — 1952 “HE MARRIED A MADAM” · p.76 Read the full issue (132 pages) → 
Fifteen Western Tales, January 1953 — 1953 “SAD NOSE JOE—RAIN-MAKER!” · p.81 Read the full issue (116 pages) → Appearances are extracted from each issue's own printed contents page; entries we can't read confidently are withheld rather than guessed.