Richard Deming
3 appearances across 3 restored issues — every one readable in full, free.
Black Mask (UK), June 1949 — 1949 “NO POCKETS IN A SHROUD” · p.4 Read the full issue (68 pages) → 
Beyond Fantasy Fiction, Vol. 1, No. 3 — 1953 “The Helpful Haunt” · p.57 Read the full issue (164 pages) → 
Beyond Fantasy Fiction, Vol. 1, No. 6 — 1954 “THE AFTERLIFE OF REILLY” · p.70 Read the full issue (164 pages) → Appearances are extracted from each issue's own printed contents page; entries we can't read confidently are withheld rather than guessed.