The following individuals and organizations contributed greatly to this website. They are listed in no particular order. I wish to thank them for their generous contributions either in material or to my knowledge of the subject.

Aviation Heritage Books
Theodore Hamady
The National Air and Space Museum (Smithsonian)
Rob Osborne
Pete Peck
Gerald Landry
GALCIT (Graduate Aeronautical Laboratory, California Institute of Tech)
David Cadorette
Brian Thomas
John Zinke
Georg Cupr
ThomasS
Eduardo Escalona
Ev Cassagneres
Randy Crawford
Northrop Grumman
Mary Kay Burke (of Northrop Grumman)
The Boeing Company
The New Piper Aircraft
The Kansas Aviation Museum
The National Museum of Naval Aviation
Scandinavian Flight Operations
The Online NACA photo collection at the NASA LaRC
Carol Rex
Malcolm Holcomb
Chip Fyn
Fiddlers Green (www.fiddlersgreen.net)
David Schober
Mitchell Holman
Bob Wilson
Edward Moore
Florida State Archives
Bill Devins
Danes Homes Antiques, Waupaca WI
Joe Collins and the Mardela Springs Historical Society
The Albuquerque Museum
Albuquerque International Sunport
Regina Chavez
The Osa and Martin Johnson Safari Museum
Jackie Borgeson
Betsy Pheil
Paul Aranha
Colin Owers
Ty Sundstrom
Dawn Patrol Aviation
Historic Flight Project
Michael and Leta D. Bishop
Dan Shumaker
Richard Adams of Michigan's Upper Peninsula
Clyde Harold Wescoat of Copper Harbor, Michigan
Alan Kaylor Cline
Lars Opland
Robert McCormick
Brian Karli
Bob Cieslak