John D. Swan
3 appearances across 3 restored issues — every one readable in full, free.
Argosy All-Story Weekly, Vol. 123, No. 4 — 1920 “Deadwood” · p.561 Read the full issue (200 pages) → 
Argosy All-Story Weekly — 1923 “So This Is Wedlock!” · p.820 Read the full issue (196 pages) → 
Argosy All-Story Weekly, May 3, 1924 — 1924 “The Family Album” · p.904 Read the full issue (186 pages) → Appearances are extracted from each issue's own printed contents page; entries we can't read confidently are withheld rather than guessed.