Earl Wayland Bowman
5 appearances across 5 restored issues — every one readable in full, free.
Argosy All-Story Weekly — "The Purple Limited" — 1920 “Shag” · p.724 Read the full issue (208 pages) → 
Argosy All-Story Weekly — 1924 “The Self-Assassination of Angel” · p.751 Read the full issue (176 pages) → 
Argosy All-Story Weekly, May 3, 1924 — 1924 “Faith in the Seventh Oasis” · p.878 Read the full issue (186 pages) → 
Argosy All-Story Weekly, May 17, 1924 — 1924 “The Elusive Mule” · p.252 Read the full issue (172 pages) → 
Argosy All-Story Weekly, Vol. 189, No. 4 — 1927 “As Told by the Ramblin' Kid” · p.635 Read the full issue (180 pages) → Appearances are extracted from each issue's own printed contents page; entries we can't read confidently are withheld rather than guessed.