John P. Langellier received his bachelor's and master's degrees in History from the University of San Diego and his Ph.D. in Military History from Kansas State University. He is the author of numerous books and monographs, including Warrior 31 Union Infantryman 1861-65 and Men-at-Arms 281 US Dragoons 1833-55. Mike Adams has been a freelance illustrator for 25 years and has worked on a wide variety of subjects. He has an honours degree in History of Art and Architecture and was cover illustrator for Publisher Mondadori (Milan/Verona) during the 1990s. His covers are now sought after by collectors worldwide.

He has illustrated subjects as varied as the Anglo-Saxons and modern nuclear submarines, as well as numerous novels, children's books and sports prints. This is his first book for Osprey.