ALEXANDRO M.DE QUESADA, a Fellow in the Company of Military Historians, has written numerous books on militaria and on Florida's military past. His latest work for Osprey includes Elite 137, The Mexican Revolution 1910-1920. He operates AdeQ Historical Archives Inc, providing his services as a museum and film consultant, and has recently worked on the History Channel's three-hour documentary on the Spanish-American War. In addition, Mr de Quesada has served as 7th District Historian for the US Coast Guard Auxiliary. He lives in Tampa, Florida, USA.

Stephen Walsh studied art at the North East Wales Institute. Since then he has worked mainly for the American historical board-game market, fulfilling a lifelong interest in historical subjects. His American works include the best-selling Settlers of Catan. He has also produced many pieces of artwork inspired by J R R Tolkien. He is married with two children and lives in Macclesfield.
Stephen Walsh studied art at the North East Wales Institute and has worked as a professional illustrator since 1988. Since then he has illustrated a variety of books and games including Settlers of Catan. His projects for Osprey include such diverse subjects as the battle of Otterburn, the Chinese army from 1937 to 1949, and the US Home Front in World War II.