F. Morton Howard
4 appearances across 4 restored issues — every one readable in full, free.
The Blue Book Magazine, February 1921 — 1921 “A Lesson in Salesmanship” · p.58 Read the full issue (212 pages) → 
The Blue Book Magazine, April 1921 — 1921 “Are Black Cats Unlucky?” · p.53 Read the full issue (202 pages) → 
The Blue Book Magazine, November 1921 — 1921 “The Birmingham God” · p.75 Read the full issue (212 pages) → 
Argosy All-Story Weekly — 1924 “The Desperate Man” Read the full issue (166 pages) → Appearances are extracted from each issue's own printed contents page; entries we can't read confidently are withheld rather than guessed.