Douglas DC-3 and C-47

Dan Hagedorn is Curator and Director of Collections at The Museum of Flight at historic Boeing Field in Seattle, Washington, and is a graduate of Villa Maria College, the State University of New York, and the Command and General Staff College (U.S. Army, post-graduate). He was previously Adjunct Curator and Research Team Leader at the National Air and Space Museum, Smithsonian Institution, Washington, DC for 19 years. Prior to that, he served in the U.S. Armed Forces for 27 years in leadership and intelligence positions worldwide and has, to date, authored 21 monographs or books detailing various aspects of aviation and aerospace history. In conjunction with the 150th Anniversary of the Smithsonian Institution, he was named an Unsung Hero of the Smithsonian Institution and was awarded the Orden do Merito Santos-Dumont by the Brazilian Government for services to Latin American aviation history, in which he specializes.

Mario Overall is the co-founder of the Latin American Aviation Historical Society – has studies in Computer Systems Engineering at the Mariano Gálvez University of Guatemala. He served in the Guatemalan Air Force as a computer specialist and then in the same capacity with the Narcotics Affairs Section of the US Embassy to Guatemala. To date, he has written more than 15 articles related to the history of military aviation in Central America, which have been published in renowned magazines in the US, Spain, Brazil, Mexico, England, France and Poland. Overall has also collaborated with several authors in their research work about Latin American aviation history.