B. W. Sliney
4 appearances across 4 restored issues — every one readable in full, free.
Weird Tales, Vol. II, No. 1 — 1923 “THE ROOM OF THE BLACK VELVET DENS” Read the full issue (98 pages) → 
Weird Tales, Vol. 6, No. 2 — 1925 “The Man Who Laughed” · p.188 Read the full issue (146 pages) → 
Weird Tales, Vol. 7, No. 5 — 1926 “The Man Who Was Saved” · p.625 Read the full issue (148 pages) → 
Weird Tales, May 1926 — 1926 “The Man Who Was Saved” · p.625 Read the full issue (148 pages) → Appearances are extracted from each issue's own printed contents page; entries we can't read confidently are withheld rather than guessed.