A Harlequin Romance Series Years 1949, 1950, 1951
| # | Author | Book Title | Year |
| # 1 | Nancy Bruff | The Manatee | 1949 |
| # 2 | Frances Shelly Wees | Lost House | 1949 |
| # 3 | Howard Hunt | Maelstrom | 1949 |
| # 4 | Arthur Herbert Bryant | Double Image | 1949 |
| # 5 | Margaret Nichols | Close to My Heart | 1949 |
| # 6 | Charles H. Snow | Wolf of the Mesas | 1949 |
| # 7 | Ronald J. Cooke | The House on Craig Street | 1949 |
| # 8 | Frances Shelly Wees | Honeymoon Mountain | 1949 |
| # 9 | Samuel Michael Fuller | The Dark Page | 1949 |
| # 10 | Manning Long | Here’s Blood in Your Eye | 1949 |
| # 11 | Magdalen King-Hall | The Wicked Lady Skelton | 1949 |
| # 12 | Robert Terrall | A Killer is Loose Among Us | 1949 |
| # 13 | Joseph McCord | His Wife the Doctor | 1949 |
| # 14 | Charles H. Snow | Six-Guns of Sandoval | 1949 |
| # 15 | Tom Powers | Virgin with Butterflies | 1949 |
| # 16 | Perry Lindsay | No Nice Girl | 1949 |
| # 17 | Herman Petersen | The D. As Daughter | 1949 |
| # 18 | Charles H. Snow | Rebel of Ronde Valley | 1949 |
| # 19 | George Albert Glay | Gina | 1949 |
| # 20 | Helen Topping Miller | Flame Vine | 1949 |
| # 21 | Charles H. Snow | Renegade Ranger | 1949 |
| # 22 | Ann Cardwell | Crazy to Kill | 1949 |
| # 23 | Aben Kandel | City for Conquest | 1949 |
| # 24 | Tom Gunn | Painted Post Outlaws | 1949 |
| # 25 | Merida Mace | Blondes Don’t Cry | 1949 |
| # 26 | Gale Jordan | Gambling on Love | 1949 |
| # | Author | Book Title | Year |
| # 27 | Alan Handley | Kiss Your Elbow | 1950 |
| # 28 | Martin Mooney | One Year With Grace | 1950 |
| # 29 | Nelson Nye | Gunfighter Breed | 1950 |
| # 30 | Margaret Nichols | Portrait of Love | 1950 |
| # 31 | Theda Kenyon | The Golden Feather | 1950 |
| # 32 | Ben Hecht | Hollywood Mystery | 1950 |
| # 33 | Helen Topping Miller | Candle in the Morning | 1950 |
| # 34 | S.S. Rabi | Mobtown Clipper | 1950 |
| # 35 | Patricia Campbell | Lush Valley | 1950 |
| # 36 | Fred Manila | Murder Over Broadway | 1950 |
| # 37 | R.D. Frisbie | Amaru | 1950 |
| # 38 | Charles H. Snow | Sheriff of Yavisa | 1950 |
| # 39 | June Truesdell | Be Still My Love | 1950 |
| # 40 | Blair Reed | Pass Key to Murder | 1950 |
| # 41 | Victor Campbell | Panthers Moon | 1950 |
| # 42 | Michel M. Scott | House in Harlem | 1950 |
| # 43 | Joe Barry | The Clean-Up | 1950 |
| # 44 | Dorothy B. Hughes | The So Blue Marble | 1950 |
| # 45 | Gerald Kersh | Night and the City | 1950 |
| # 46 | Cecile Gilmore | Fair Stranger | 1950 |
| # 47 | Cart Sturdy | Registered Nurse | 1950 |
| # 48 | Gamett Weston | Poldrate Street | 1950 |
| # 49 | John Evans | Weep Not Fair Lady | 1950 |
| # 50 | Joseph McCord | One Way Street | 1950 |
| # 53 | William C. White | Pale Blonde of Sands Street | 1950 |
| # 54 | Elizabeth Sanxay Holding | Speak of the Devil | 1950 |
| # 55 | Eugene Healy | Mr. Sandeman Loses His Life | 1950 |
| # 56 | Ronald J. Cooke | The Mayor of Cote St. Paul | 1950 |
| # 57 | William Bogart | Murder Man | 1950 |
| # 58 | E.E. Halleran | Outposts of Vengeance | 1950 |
| # 59 | Richard Sale | Cardinal Rock | 1950 |
| # 60 | Elizabeth Sanxay Holding | Lady Killer | 1950 |
| # 61 | E.E. Halleran | Shadow of the Badlands | 1950 |
| # 62 | Sam Merwin Jr. | Message From a Corpse | 1950 |
| # 63 | William Brandon | The Dangerous Dead | 1950 |
| # 64 | Michel M. Scott | Sinister Warning | 1950 |
| # 65 | H.M.E. Clamp | Bridewell Beauty | 1950 |
| # 66 | Amos Moore | Royce of the Royal Mounted | 1950 |
| # 67 | Don Tracy | Criss Cross | 1950 |
| # 68 | William Bogart | The Queen City Murder Case | 1950 |
| # 69 | William G. Schofield | Payoff in Black | 1950 |
| # 70 | Sam Merwin Jr. | Knife in My Back | 1950 |
| # 72 | Joy Brown | Night of Terror | 1950 |
| # 73 | Archie Joscelyn | The King of Thunder Valley | 1950 |
| # 74 | Francis Van Wyck Mason | Spider House | 1950 |
| # 75 | J.E. Grinstead | Maverick Guns | 1950 |
| # 76 | Amelia Reynolds Long | The Corpse Came Back | 1950 |
| # 77 | Owen Fox Jerome | A Night at Club Bagdad | 1950 |
| # 78 | Don MacMillan | Rink Rat | 1950 |
| # 79 | Richard Sale | Lazarus 7 | 1950 |
| # 80 | R.M. Laurenson | The Case of Six Bullets | 1950 |
| # 81 | Paul Evan Lehman | Idaho | 1950 |
| # 82 | Paul Evan Lehman | The Cold Trail | 1950 |
| # 83 | Joe Barry | Fall Guy | 1950 |
| # 84 | Joe Barry | The Triple Cross | 1950 |
| # 85 | Knight Rhoades | She Died on the Stairway | 1950 |
| # 86 | Owen Fox Jerome | Double Life | 1950 |
| # 87 | Sam Merwin Jr. | Murder in Miniatures | 1950 |
| # 88 | Leslie Ernenwein | Renegade Ramrod | 1950 |
| # 89 | Leslie Ernenwein | The Faro Kid | 1950 |
| # 90 | A.A. Marcus | The Window Gay | 1950 |