Charles W. Diffin
4 appearances across 4 restored issues — every one readable in full, free.
Astounding Stories of Super-Science, June 1930 — 1930 “The Moon Master” · p.1 Read the full issue (153 pages) → 
Astounding Stories of Super-Science — 1930 “The Pirate Planet” (serial) Read the full issue (149 pages) → 
Astounding Stories of Super-Science, Vol. 4, No. 3 — 1930 “The Pirate Planet” (serial) · p.310 Read the full issue (151 pages) → 
Astounding Stories of Super-Science, January 1931 — 1931 “Pirate Planet” (serial) · p.109 Read the full issue (149 pages) → Appearances are extracted from each issue's own printed contents page; entries we can't read confidently are withheld rather than guessed.