Henry Herbert Knibbs
3 appearances across 3 restored issues — every one readable in full, free.
The Popular Magazine, March 7, 1922 — 1922 “The Return of the Spider” · p.96 Read the full issue (208 pages) → 
The Popular Magazine, January 7, 1925 — 1925 “TEMESCAL” (serial) · p.1 Read the full issue (212 pages) → 
The Popular Magazine, February 7, 1925 — 1925 “TEMESCAL” (serial) · p.114 Read the full issue (220 pages) → Appearances are extracted from each issue's own printed contents page; entries we can't read confidently are withheld rather than guessed.