~ Galen C. Colin, “Wrong Font Brands”, ‘Pica Slim, tramp printer’, author’s sole appearance in BM
~ Carroll John Daly, “Murder by Mail”, 38th of 53 with Race Williams, ‘vs. Bull Lowery’, 50th of 71 appearances in BM
~ Ramon Decolta (Raoul Whitfield), “The Man in White”, 2nd of 6 parts in the ‘Rainbow Diamonds’ sequence that take Jo Gar from Manila to San Francisco, 11th of 24 Gar stories in BM, reprinted in West of Guam: The Complete Cases of Jo Bar (Altus Press, 2013)
~ Grimes Hill (pseud. of Frederick Lewis Nebel), “The Kill”, 1st of 2 stories in this issue by the author, 1st of 2 stories under this name in BM, reprinted in Street Wolf (Altus Press, 2014),
~ Frederick L. Nebel, “Junk”, 13th of 37 with Captain Steve MacBride and local reporter Kennedy ‘fighting river pirates’, reprinted in Winter Kill: Complete Cases of MacBride & Kenney, v.2 (Altus, 2013), 30 of 67 Nebel stories in BM
~ James P. Olsen, “Who Knows?”, 5th of 6 Western stories in BM
~ Joseph T. Shaw, “Derelict”, 2nd of 4-part serialization of his 1930 novel, ‘murder, romance and disaster on a deserted ocean liner’, 3rd of 9 fiction pieces in BM
~ Ramon Decolta (Raoul Whitfield), “The Caleso Murders”, 1st story by RFW in this issue, 8th of 24 Jo Gar stories in BM, reprinted in West of Guam: The Complete Cases of Jo Bar (Altus Press, 2013)
~ Nels Leroy Jorgensen, “Racketeers’ Reef”, last of 3 with Rio Kennedy of the Customs Service in Santo Domingo, 20th of 39 stories in BM
~ Horace McCoy, “The Mailed Fist”, 8th of 14 Frost stories ’Capt. Jerry Frost, Texas (Air) Ranger & Stepsons have a go at ‘The Big Shot’, 9th of 17 stories in BM
~ Frederick L. Nebel, “The Red-Hots”, 2nd of 15 stories with ‘tough dick Donahue of Interstate’, reprinted in Tough as Nails (2012, Altus), 27 of 67 stories in BM
~ James P. Olsen, “Honor of the Show”, ‘deformed sideshow owner, Price Eco, and murder’, 3rd of 6 Western stories in BM
~ Bertrand W(illiam) Sinclair, “Rope’s End”, ‘Western; Bill Stokes’, 1st of 3 stories in BM
~ Raoul [Fauconnier] Whitfield, “Murder in the Ring”, ‘boxing, gamblers, racketeers, with Primo-Carnera-like boxer’; reprinted in May ’51 issue, 2nd story in this issue, 44th of 67 stories in BM [see also 24 stories as Ramon Decolta]
~ Erle Stanley Gardner, “Chinatown Murder”, 49th of 73 Ed Jenkins stories, ‘Chinese frequently spoken’, 70th of 99 stories in BM
~ Frederick L. Nebel, “Farewell to Crime”, 21st of 37 with Captain Steve MacBride and local reporter Kennedy, reprinted in Too Young to Die: Complete Cases of MacBride & Kennedy, v.3 (Altus, 2013), 46 of 67 stories in BM
~ Norvell Page, “Black Harvest”, ‘last of 3 Jules Tremaine stories; Manhattan and Little Italy; (ed. note) a projected & potentially important series that never developed’ [Hagemann doesn’t explain his editor’s note], only these 3 stories in BM. Reprinted in Black Harvest: The Complete Black Mask Cases of Jules Tremaine (Steeger Books, 2021).
~ William Rollins, Jr., “K.O. and the Killers”, 3rd of 4 stories with ‘Kenneth Osborne from ‘No’th Cah’lina’; 1st person narrator’, 20th of 23 stories in BM
~ H.H. Stinson, “Give the Man Rope”, 1st of 14 with ‘Ken O’Hara, fighting reporter on Los Angeles Tribune’, debut and 1st of 27 stories in BM
~ Roger Torrey, “The Case-Hardened Samaritan”, 2nd of 11 with Dal Prentice, Magna City police dick, ‘one tough guy’, ‘Prentice – “hard when it comes to handling killers”, reprinted in The Case-Hardened Samaritan: The Complete Black Mask Cases of Dal Prentice, Vol. 1, 3rd of 50 appearances in BM
~ Erle Stanley Gardner, “The Crime Crusher”, 32th Ed Jenkins & his wife Helen Chadwick, 1st of a 3-part story, 49th of 99 stories in BM
~ Dashiell Hammett, “Dagger Point”, Ned Beaumont, 3rd of 4 stories that will go together to make up The Glass Key (published 1931), 43rd of 45 stories in BM
~ Nels Leroy Jorgensen, “Slowdown Hands”, 14th of 32 with Stuart “Black” Burton, ‘square-shooting gambler from the Southwest, often entangled with the law’, 18th of 39 stories in BM
~ Frederick L. Nebel, “Street Wolf”, ’Napoleon Damiani, gangster’, 23 of 67 stories in BM
~ Reuben Jennings Shay, “Backfire”, 1st of 2 in BM