Mark A. Berhow has long had an interest in the history of American coastal and continental air defenses. He was worked at the Fort MacArthur Museum, and Nike missile post in Los Angeles for 10 years, and is a past chairman of the Coast Defense Study Group (CDSG). Terrance McGovern has been an avid student of fortifications for many years, with a particular interest in American coastal defenses in overseas territories. A former Chairman of the Coast Defense Study Group, Terrance lives in McClean, Viriginia, with his wife and three daughters.

Chris Taylor was born in Newcastle, UK, but now lives in London. After attending art college in his home town, he graduated in 1995 from Bournemouth University with a degree in computer graphics. Since then he has worked in the graphics industry and is currently a freelance illustrator. He has a keen interest in filmmaking and is currently co-producing a movie.
Terrance McGovern has authored five books and numerous articles on fortifications, three of those books being for Osprey's Fortress Series (American Defenses of Corregidor and Manila Bay 1898-1945; Defenses of Pearl Harbor and Oahu 1907-50; American Coastal Defences 1885-1950). He has also published eleven books on coast defense and fortifications through Redoubt Press or CDSG Press. The CDSG Press (www.cdsg.org) is part of the US based Coast Defense Study Group (non-profit organization dedicated to the study of coastal fortifications), where Terry has been its Chairman and continues to be a long-time officer. He has also been the editor of the UK based Fortress Study Group annual journal, FORT. He also a director of the International Fortress Council and Council on America's Military Past.