Ace Books have published hundreds of western titles, starting in 1952. Most of these were Ace Doubles (dos-à-dos format), but they also published a few single volumes. Between 1952 and 1968, the books had a letter-series identifier; after that date they were given five digit numeric serial numbers. There were a total of 159 letter-series western titles. The list given here gives a date of publication; in all cases this refers to the date of publication by Ace, and not the date of original publication of the novels. For more information about the history of these titles, see Ace Books, which includes a discussion of the serial numbering conventions used and an explanation of the letter-code system. D, G and S Series S-060 WE Samuel Peeples (as Brad Ward) The Marshal Of Medicine Bend (1954) S-082 WE Louis L'Amour Kilkenny S-148 WE Samuel Peeples (as Brad Ward) The Man From Andersonville (1956) D-206 WE Robert Hardy Andrews Great Day In The Morning (1957) D-395 WE Allan Keller Thunder At Harper's Ferry (1959) D-466 WE Richard O'Conner Wild Bill Hickok (1960) D-475 WE Samuel Peeples (as Brad Ward) The Marshal of Medicine Bend G-480 WE John Brick The Strong Men (1960) D-494 WE Leslie T. White Log Jam (1961) G-500 WE George D. Hendricks The Bad Man of the West (1961) D-570 WE L. L. Foreman Spanish Grant (1963) D-572 WE Brian Garfield (as Frank Wynne) Arizona Rider D-573 WE Louis Trimble (as Stuart Brock) Whispering Canyon (1963) D-574 WE Louis L'Amour Kilkenny (1954) D-578 WE Brian Garfield The Lawbringers (1963) D-588 WE Merle Constiner Short Trigger Man D-590 WE Lin Searles Stampede At Hourglass (1964) D-592 WE Nelson Nye Gunslick Mountain (1964) D-594 WE Louis Trimble The Desperate Deputy of Cougar Hill (1965) D-597 WE L. P. Holmes The Hardest Man In The Sierras (1965) F Series F-103 WE Harry Whittington A Trap For Sam Dodge / Lee Floren High Thunder (1961) F-106 WE Brian Garfield Justice At Spanish Flat / Tom West The Gun From Nowhere (1961) F-110 WE Ray Hogan Track The Man Down / Lee Wells Savage Range (1961) F-116 WE Dwight Bennett Newton (as Clement Hardin) The Lurking Gun / Louis Trimble Deadman Canyon (1961) F-120 WE Jack M. Brickham Gunman Can't Hide / John Callahan Come In Shooting (1961) F-124 WE Steven G. Lawrence Slatterly / Steven G. Lawrence Bullet Welcome For Slatterly (1961) F-126