Name In Gunsmoke / Dean Owens Lone Star Roundup (1968) G-746 WE William Colt Macdonald Marked Deck At Topango Wells (1968) G-747 WE Ray Hogan Killer On The Warbucket / Dean Owen Sage Tower (1968) G-754 WE Jack L. Bickham The War On Charity Ross (1968) G-755 WE Wayne C. Lee Trail Of The Skulls / Merle Constiner The Four From Gila Bend (1968) G-759 WE Giff Cheshire Wenatchee Bend (1968) G-760 WE Reese Sullivan The Vengeance Ghost / X.X. Jones Bronc (1968) G-763 WE John Shelley and David Shelley Hell-For-Leather Jones (1968) G-764 WE Louis Trimble West To The Pecos / John Callahan Jernigan Jernigan (1968) K Series K-107 WE Hugh B. Cave The Cross On The Drum (1959) K-247 WE Francis H. Ames That Callahan Spunk! (1965) References Ace Image Library. Contains images of most covers for both the singles and doubles. Bookscans. Contains numerous images of the Ace covers. Western letter-series single titles