R.E. Alexander
3 appearances across 3 restored issues — every one readable in full, free.
Argosy All-Story Weekly — 1924 “Treat Em Rough!” · p.834 Read the full issue (180 pages) → 
Adventure Magazine Cover, June 20, 1925 — 1925 “O Pioneers!” (poem) · p.58 Read the full issue (212 pages) → 
Argosy All-Story Weekly, June 13, 1925 — 1925 “Ambition!” (poem) · p.507 Read the full issue (170 pages) → Appearances are extracted from each issue's own printed contents page; entries we can't read confidently are withheld rather than guessed.