George M. Johnson
3 appearances across 3 restored issues — every one readable in full, free.
Argosy All-Story Weekly, December 4, 1926 — 1926 “Excitement Trail” · p.346 Read the full issue (184 pages) → 
Argosy All-Story Weekly, Vol. 189, No. 4 — 1927 “Tickets to Paradise” (serial) · p.48 Read the full issue (180 pages) → 
Argosy All-Story Weekly — "Sea Marauders" — 1928 “Trouble Ranch” (serial) · p.459 Read the full issue (156 pages) → Appearances are extracted from each issue's own printed contents page; entries we can't read confidently are withheld rather than guessed.