David X. Manners
4 appearances across 3 restored issues — every one readable in full, free.
12 Sports Aces, January 1943 — 1943 “Basket Larceny” · p.34 Read the full issue (116 pages) → 
12 Sports Aces, May 1943 — 1943 “HOMESTRETCH HEADACHE” Read the full issue (100 pages) → 
5 Detective Novels Magazine — 1952 “KILLER UNDER GLASS” · p.47“The Lowdown” (feature) · p.6 Read the full issue (132 pages) → Appearances are extracted from each issue's own printed contents page; entries we can't read confidently are withheld rather than guessed.