Theodore Seixas Solomons
3 appearances across 3 restored issues — every one readable in full, free.
The Popular Magazine, March 7, 1922 — 1922 “The Fang Mark” · p.113 Read the full issue (208 pages) → 
The Popular Magazine, August 20, 1924 — 1924 “Mute Tongues” · p.95 Read the full issue (196 pages) → 
Adventure Magazine Cover — 1925 “The Invincible Tradition” · p.67 Read the full issue (196 pages) → Appearances are extracted from each issue's own printed contents page; entries we can't read confidently are withheld rather than guessed.