D-02 WILLIAM COLT MacDONALD Bad Man's Return (1952; listed as "Complete and Unabridged") and D-02b J. EDWARD LEITHEAD Bloody Hoofs (1952; listed as an "ACE Original")
D-04 LEWIS B. PATTEN Massacre at White River (1952; listed as an "ACE Original") and D-04b WALTER A. TOMPKINS Rimrock Rider (c. 1950; 1952; listed as "Complete and Unabridged")
D-06 WILLIAM E. VANCE The Branded Lawman (cover by Norman Saunders; 1952; listed as an "ACE Original") and D-06b NELSON C. NYE Plunder Valley (c. 1949; 1952; listed as "specially revised edition")
D-08 ALLAN K. ECHOLS Terror Rides the Range (1953; listed as an "ACE Original") and D-08b TOM WEST Gunsmoke Gold (1953; listed as "Complete and Unabridged")
D-10 LESLIE SCOTT The Brazos Firebrand (1953; listed as an "ACE Original") and D-10b GORDON YOUNG Hell on Hoofs (original title: Quarter Horse; 1953; listed as "Complete and Unabridged")
D-12 DEAN OWEN (aka DUDLEY DEAN McGAUGHEY) The Man From Boot Hill (1953; listed as an "ACE Original") and D-12b DAN J. STEVENS Wild Horse Range (cover by Norman Saunders; 1953; listed as "Complete and Unabridged")
D-14 PAUL EVAN LEHMAN Vultures on Horseback (original title: Doves of War; cover by Ralph Smith; 1953; listed as "Complete and Unabridged") and D-14b GEORGE KILRAIN Maverick With A Star (1953; listed as an "ACE Original")
D-18 J. EDWARD LEITHEAD The Lead-Slingers (cover by Norman Saunders; 1953; listed as an "ACE Original") and D-18b BRAD WARD (aka SAMUEL PEEPLES) The Hanging Hills (1953; listed as "Complete and Unabridged")
D-20 ROY MANNING The Desperado Code (original title: Six-Gun Sheriff; 1953; listed as "Complete and Unabridged") and D-20b ALLAN K. ECHOLS Double-Cross Brand (cover by Norman Saunders; 1953; listed as an "ACE Original")
D-22 BLISS LOMAX Maverick of the Plains (cover by Ralph Smith; 1953; listed as "Complete and Unabridged") and D-22b LESLIE SCOTT Badlands Masquerader (1953; listed as an "ACE Original")
D-24 TOM WEST Vulture Valley (c. 1951; listed as "Complete and Unabridged") and JOHN CALLAHAN The Sidewinders (1953; listed as an "ACE Original")
D-28 PAUL EVANS Gunsmoke Kingdom (original title: This Range is Mine; cover by Norman Saunders; 1953; listed as "Complete and Unabridged") and D-28b WILLIAM E. VANCE Avenger From Nowhere (1953; listed as an "ACE Original")
D-30 GEORGE KILRAIN South To Santa Fe (1953; listed as an "ACE Original") and D-30b BRAD WARD (aka SAMUEL PEEPLES) Johnny Sundance (1953; listed as "Complete and Unabridged")
D-34 KEN MURRAY Hellion's Hole (cover by Ralph Smith; 1953; listed as an "Original 'Marshall Dawson' Novel") and D-34b KEN MURRAY Feud in Piney Flats (1953; listed as an "ACE Original")
D-38 BLISS LOMAX Outlaw River (1953; listed as "Complete and Unabridged") and D-38b JIM MAYO (aka Louis l'Amour) Showdown at Yellow Butte (1953; listed as an "ACE Original")
D-39 FRANK GRUBER Quantrell's Raiders (1953; listed as an "ACE Original") and D-39b FRANK GRUBER Rebel Road (original title: Outlaw; 1953; listed as "Complete and Unabridged")
D-42 WALTER A. TOMPKINS One Against the Bullet Horde (cover by Norman Saunders; 1954; listed as an "ACE Original") and D-42b CHARLES M. MARTIN Law for Tombstone (cover by Allen Anderson; 1954; listed as "Abridged Edition")
D-46 CHUCK MARTIN Law From Back Beyond (cover by Norman Saunders; 1954; listed as an "ACE Original") and D-46b ROY MANNING Vengeance Valley (cover by John Leone; 1954; listed as "Complete and Unabridged")
D-48 JIM MAYO (aka LOUIS L'AMOUR) Utah Blaine (1954; listed as an "ACE Original") and D-48b BRAD WARD Desert Showdown (original title: The Spell of the Desert; 1954; cover by Norman Saunders;1954; listed as "Complete and Unabridged")
D-052 WILLIAM COLT MacDONALD Boomtown Bucaneers (1954; listed as "Abridged Edition") and D-52b LOUIS L'AMOUR Crossfire Trail (1954; listed as an "ACE Original")
D-56 BLISS LOMAX Ambush at Coffin Canyon (original title: The Leather Burners;1954; listed as "Revised Edition") and D-56b CLEMENT HARDIN (aka DWIGHT BENNETT NEWTON) Hellbent For a Hangrope (1954; listed as an "ACE Original")
D-64 PAUL EVAN LEHMAN Bullets Don't Bluff (1954; listed as an "ACE Original") and D-64b CHANDLER WHIPPLE Under the Mesa Rim (1954; listed as "Complete and Unabridged")
D-68 WALKER A. TOMPKINS Deadwood (cover by Bentley; 1954; listed as an "ACE Original") and D-68b WILLIAM HOPSON Bullet-Brand Empire (original title: Cow Thief Empire; 1954; listed as "Complete and Unabridged")
D-72 RALPH R. PERRY Night Rider Deputy (cover by Bentley; 1954) and D-72b NORMAN A. FOX The Devil's Saddle (c. 1948; 1954; listed as "Complete and Unabridged")
D-78 NELSON NYE The One-Shot Kid (original title: Once in The Saddle; c. 1946; 1954; listed as "Complete and Unabridged") and D-78b TOM WEST Lobo Legacy (1954; listed as a "Complete New Novel")
D-86 RICHARD BRISTER The Shoot-Out at Sentinel Peak (1954; listed as "Complete and Unabridged") and D-86b ROY MANNING Tangled Trail (c. 1947, 1954; listed as "Complete and Unabridged")
D-92 BURT ARTHUR The Drifter (1955; listed as "Complete and Unabridged") and D-92b RICHARD WORMSER & DAN GORDON The Longhorn Trail (1955; listed as "Complete and Unabridged")
D-98 NELSON NYE The Texas Tornado (original title: Rustler's Roost; cover by Norman Saunders; c. 1943; 1955; listed as "Complete and Unabridged") and SAMUEL ANTHONY PEEPLES The Lobo Horseman (cover by Walter Popp;1955; listed as "Complete and Unabridged")
D-106 D. L. BONAR Lawman Without a Badge (1955; listed as "Complete and Unabridged") and D-106b LEE FLOREN Four Texans North (cover by Walter Popp; 1955; listed as "Complete and Unabridged")
D-112 FRANK CASTLE Border Buccaneers (cover by Walter Popp; 1955; listed as "Complete and Unabridged") and D-112b HARRY SINCLAIR DRAGO Trigger Gospel (1955; listed as "Revised by the author")
D-120 JOHN McGREEVEY Bounty Man (1955; listed as "Complete and Unabridged") and D-120b SAMUEL ANTHONY PEEPLES The Call of the Gun (1955; listed as "Complete New Novel")
D-128 WILLIAM HOPSON High Saddle (cover by John Leone; 1955; listed as "Complete and Unabridged") and WILLIAM E. VANCE Way Station West (cover by Walter Popp; 1955; listed as "Complete and Unabridged")
D-134. GENE OLSON The Outsiders (1955; listed as "Complete and Unabridged") and D-134b NELSON NYE Tornado on Horseback (c.1944; 1955)
D-138 PAUL EVAN Gunsmoke Over Sabado (1956; listed as "Complete and Unabridged") and D-138b T. V. OLSEN Haven Of The Hunted (1956; listed as "Complete Novel")
D-144 JAY ALBERT The Man From Stony Lonesome (cover by Walter Popp; 1956; listed as "Complete Novel") and D-144b ROD PATTERSON A Killer Comes Riding (cover by Walter Popp; 1956; 1st ACE printing; listed as "Complete and Unabridged")
D-156 LEE FLOREN Thruway West (cover by John Leone; 1956; listed as "Complete and Unabridged") and D-156b STEPHEN C. LAWRENCE The Naked Range (cover by Walter Popp; 1956; listed as "Complete Novel"
D-160 KARL KRAMER Action Along the Humboldt (1956; listed as "Complete Novel") and D-160b MICHAEL CARDER Decision at Sundown (1956; listed as "Complete and Unabridged")
D-166 SAMUEL ANTHONY PEEPLES Terror At Tres Alamos (1956; listed as "Complete Novel") and D-166b STUART BROCK Whispering Canyon (1956; listed as "Complete and Unabridged"
D-172 ROBERT J. STEELMAN Stages South (1956; listed as "Complete Novel" and D-172b BEN SMITH Johnny No-Name (1956; listed as "Complete and Unabridged")
D-180 NELSON C. NYE The No-Gun Fighter (1956; listed as "complete novel" and D-180b WALT COBURN One Step Ahead of the Posse (1956; listed as "complete and unabridged")
D-186 RAY HOGAN Ex-Marshall (1956; listed as "complete novel") and EDWARD CHURCHILL Steel Horizon (1956; listed as "Complete and Unabridged")
D-192 ROY MANNING Beware Of This Tenderfoot (1956; listed as "Complete Novel" and D-192b JOHN CALLAHAN Bad Blood at Black Range ( cover by John Leone; 1956; listed as "Complete & Unabridged")
D-196 WALT COBURN The Night Branders (cover by Walter Popp; 1956; listed as "Complete Novel") and D-196b FRANK GRUBER The Highwayman (1956; listed as "Complete and Unabridged"
D-204 PAUL DURST John Law, Keep Out! (1957; listed as "complete novel") and D-204b GORDON DONALDS The Desperate Donigans (original title: Arizona Justice ; 1957; listed as "complete and unabridged")
D-208 GLENN BALCH Blind Man's Bullets (1957; listed as "Complete Novel") and D-208b BARRY CORD The Prodigal Gun (original title: Trail To Sundown; c. 1953; 1957; listed as "complete and unabridged")
D-216 BARRY CORD Savage Valley (original title: Dry Range; c. 1955; listed as "complete and unabridged") and D-216b WILLIAM COLT MacDONALD Ridin' Through (1957; listed as "Complete Novel")
D-220 RAY HOGAN The Friendless One (1957; listed as "Complete Novel") and D-220b JOHN JAKES Wear A Fast Gun (cover by Verne Tossey; c. 1956; listed as "Complete and Unabridged")
D-226 EDWIN BOOTH Showdown at Warbird (1957; listed as "complete novel") and D-226b SAMUEL A. PEEPLES Doc Colt (1957; listed as "Complete & Unabridged")
D-230 BARRY CORD Boss of Barbed Wire (c. 1955; 1957; listed as "Complete & Unabridged") and LEE FLOREN Burn 'Em Out! (1957; copyright by A. A. Wyn;listed as "Complete Novel")
D-236 EDWIN BOOTH Jinx Rider (1957; listed as "Complete & Unabridged") and D-236b RAY HOGAN Walk a Lonely Trail (1957; listed as "complete novel")
D-240 WAYNE C. LEE Broken Wheel Ranch (1957; listed as "complete & unabridged") and D-240b TOM WEST Torture Trail (1957; listed as "complete novel"")
D-248 CLEMENT HARDIN (aka DWIGHT BENNETT NEWTON) Longhorn Law (cover by Walter Popp; 1957; listed as "complete novel") and D-248b RAY HOGAN Cross Me in Gunsmoke (cover by Walter Popp; 1957; listed as "Complete & Unabridged")
D-252 JOHN CALLAHAN The Rawhide Breed (1957; listed as "Complete & Unabridged") and D-252b ROD PATTERSON Prairie Terror (1957; listed as "Complete Novel")
D-260 RAY HOGAN (with MATT SLADE) Land of the Strangers (1957; listed as "Complete & Unabridged") and D-260b LEE FLOREN The Saddle Wolves (1957; listed as "Complete Novel")
D-264 BARRY CORD Cain Basin (c.1954; 1958) and D-264b LEE E. WELLS Brother Outlaw (cover by Walter Popp; 1958; listed as "Complete Novel")
D-272 LEE FLOREN Riders in the Night (cover by John Leone; 1958; listed as "Abridged") and D-272b WILLIAM HOPSON Backlash at Cajon Pass (cover by Walter Popp; 1958; listed as "Complete Novel")
D-276 BARRY CORD The Gunsmoke Trail (1958; listed as "Complete and Unabridged") and D-276b TOM WEST Lead in His Fists (cover by Robert Lesser; 1958; listed as "Complete Novel")
D-284 BARRY CORD The Guns of Hammer (c.1956; listed as "Complete & Unabridged") and D-284b EDWIN BOOTH The Man Who Killed Tex (cover by Walter Popp; c. 1957; listed as "Complete Novel")
D-288 EDWIN BOOTH Trail to Tomahawk (cover by Walter Popp; 1958; listed as "Complete Novel") and D-288b JOHN CALLHAN Land Beyond the Law (cover by Walter Popp; 1958; listed as "Complete & Unabridged")
D-294 JOHN H. LATHAM Bad Bunch of the Brasada (1958; listed as "Complete Novel") and D-294b WALT COBURN Beyond the Wide Missouri (1958; listed as "Complete & Unabridged")
D-298 PAUL EVANS Thunder Creek Range (cover by Verne Tossey; c.1957; 1958; listed as "Complete & Unabridged") and D-298b WILLIAM VANCE Outlaws Welcome! (cover by Leone; 1958; listed as "Complete Novel")
D-304 ARCHIE JOSCELYN River to the Sunset (1958; listed as "Complete Novel") and D-304b BEN SMITH Trouble at Breakdam (1958; listed as "Complete & Unabridged")
D-308 JACK M. BICKHAM Gunman's Gamble (1958; listed as "Complete Novel") and D-308b ROY MANNING Draw and Die! (1958; listed as "Complete & Unabridged")
D-316 ROD PATTERSON A Time For Guns (1958; listed as "Complete Novel") and D-316b BARRY CORD Mesquite Johnny (c.1954; 1958; listed as "Abridged")
D-320 ROBERT McCAIG The Rangemaster (cover by Walter Popp; 1958; listed as "Complete Novel") and D-320b WILLIAM HOPSON The Last Shoot-out (1958; listed as "Complete & Unabridged")
D-328 MERLE CONSTINER The Fourth Gunman (1958; listed as "Complete Novel") and TOM WEST Slick on the Draw (1958; listed as "Complete & Unabridged")
D-332 KERMIT WELLES Blood on Boot Hill (1958; listed as "Complete & Unabridged") and D-332b BEN SMITH Stranger in Sundown (1959; listed as "Complete Novel")
D-346 RAY HOGAN Wanted: Alive! (c. 1956; 1959; listed as "Complete Novel") and D-346b BARRY CORD Sherriff of Big Hat (c. 1957; 1959 listed as "Complete & Unabridged")
D-348 T. V. OLSEN The Man From Nowhere (1959; listed as "Complete & Unabridged") and D-348b JOHN L. SHELLEY The Avenging Gun (1959; listed as "Complete Novel")
D-356 PAUL DURST Kansas Guns (1959; listed as "Abridged") and D-356b TOM WEST The Cactus Kid (c. 1958; 1959; listed as "Complete Novel")
D-360 JOHN H. LATHAM Johnny Sixgun (cover by R. Lance; 1959; listed as "Complete Novel") and D-360b BARRY CORD War In Peaceful Valley (1959; listed as "First Book Publication")
D-368 RAY HOGAN Hangman 's Valley (cover by Lesser; 1959; listed as "First Book Publication") and D-368b JOSEPH GAGE A Score to Settle (1959; listed as "Complete & Unabridged")
D-372 DAN KIRBY Cimarron Territory (1959; listed as "Complete Novel") and D-372b GLENN BALACH Grass Greed (cover by Verne Tossey; 1959; listed as "First Book Publication")
D-380 WILLIAM HEUMAN My Brother The Gunman (1959; listed as "First Book Publication") and D-380b BARRY CORD Concho Valley (1959; listed as "Abridged")
D-384 LOUIS TRIMBLE Mountain Ambush (1959; listed as "Abridged") and D-384b JACK M. BICKHAM Feud Fury (cover by Verne Tossey; 1959; listed as "First Book Publication")
D-392 TOM WEST Twisted Trail (cover by Gerald McConnell; 1959; listed as "First Book Publication") and D-392b ARCHIE JOSCELYN The Man From Salt Creek (cover by Gerald McConnell; 1959; listed as "Complete & Unabridged")
D-400 BARRY CORD Last Chance at Devil's Canyon (cover by Gerald McConnell; 1959; listed as "Complete Novel") and D-400b GORDON D. SHIRREFFS Shadow of a Gunman (1959; listed as "First Book Publication")
D-408 EDWIN BOOTH Wyoming Welcome (1959; listed as "First Book Publication") and D-408b GILES A. LUTZ Law of the Trigger (cover by Gerald McConnell; 1959; listed as "Complete Novel")
D-412 E. A. ALMAN Ride the Long Night (c. 1959; 1960; listed as "Complete & Unabridged") and D-412b GORDON D. SHIRREFFS Apache Butte (cover by Gerald McConnell; 1959; listed as "First Book Publication")
D-418 C. S. PARK The Quiet Ones (1960: listed as "Complete Novel" and D-418b TOM WEST Nothing But My Gun (cover by Verne Tossey; 1960; listed as "First Book Publication")
D-424 LEE RICHARDS Shoot-Out at the Way Station (listed as "First Book Publication") and D-424b ROBERT McCAIG Wild Justice (1960; listed as "Complete & Unabridged")
D-430 WILLIAM HOPSON Born Savage (1960; listed as "Complete Novel") and D-430b RAY HOGAN The Hasty Hangman (cover by Gerald McConnell; 1960; listed as "First Book Publication")
D-436 TOM WEST The Phantom Pistoleer (1960; listed as "Complete Novel") and D-436b GILES A. LUTZ The Challenger (cover by Gerald McConnell; 1960; listed as "First Book Publication")
D-442 JACK M. BICKHAM Killer's Paradise (1960; listed as "Complete Novel") and D-442b ROD PATTERSON Rider of the Rincon (cover by Gerald McConnell; 1960; listed as "First Book Publication")
D-448 LEE FLOREN Pistol-Whipper (1960; listed as "Complete Novel") and D-448b AL CODY (aka ARCHIE JOSCELYN) Winter Range (cover by Gerald McConnell; 1959; listed as "Complete & Unabridged")
D-450 TOM WEST Side Me With Sixes (cover by Gerald McConnell; 1960; listed as "First Book Publication") and D-450b RAY HOGAN The Ridgerunner (1960; listed as "Complete Novel")
D-456 EDWIN BOOTH Danger Trail (1960; listed as "Abridged") and D-456b EDWIN BOOTH The Desperate Dude (cover by Gerald McConnell; 1960; listed as "First Book Publication")
D-462 JACK M. BICKHAM The Useless Gun (1960; listed as "Complete Novel") and JOHN H. LATHAM The Long Fuse (cover by Gerald McConnell; 1960; listed as "First Book Publication")
D-470 GENE OLSEN The Man Who Was Morgan (cover by Gerald McConnell; 1960; listed as "First Book Publication") and D-470b BEN SMITH The Maverick (cover by Gerald McConnell; 1960; listed as "Abridged")
D-476 TOM WEST Double-Cross Dinero (cover by Gerald McConnell; 1960; listed as "First Book Publication") and D-476b EDWIN BOOTH Last Valley (c.1960; listed as "Abridged")
D-484 RAY HOGAN Ambush at Riflestock (1961; listed as "Complete Novel") and D-484b AL CODY (aka ARCHIE JOSCELYN) Dead Man's Spurs (1961; listed as "First Book Publication")
D-492 WILLIAM HOPSON Winter Drive (1961; listed as "Complete Novel") and D-492b GILES A. LUTZ The Wild Quarry (cover by Gerald McConnell; 1961; listed as "First Book Publication")
D-496 STEVEN G. LAWRENCE With Blood In Their Eyes (cover by Gerald McConnell; 1961; listed as "Complete Novel") and D-496b TOM WEST Killer's Canyon (1961; listed as "First Book Publication")
D-502 PAUL EVAN LEHMAN Troubled Range (1959; 1961; listed as "Complete & Unabridged") and D-502b AL CODY (aka ARCHIE JOSCELYN) Long Night at Lodgepole (1961; listed as "First Book Publication")
D-510 HARRY WHITTINGTON The Searching Rider (1961; listed as "First Book Publication") and D-510b JACK M. BICKHAM Hangman's Territory (cover by Gerald McConnell; 1961; listed as "Complete Novel")
D-514 GORDON D. SHIRREFFS Hangin' Pards (1961; listed as "Complete Novel") and D-514b GORDON D. SHIRREFFS Ride a Lone Trail (1961; listed as "First Book Publication")