|AviationHeritage.org - Working to document aviation heritage and history through the use of modern technologies|
|Twin Row Radial Engine in Fairfax Harbour, Port Moresby, PNG (Daniel J. Leahy, 2005)|
Baugher, J. 2017 1940 USAAC Serial Numbers. Joe Baugher's Home Page. Retrieved 7 January 2018 from <http://www.joebaugher.com/usaf_serials/1940.html>.
Chorley, W.R. 2006 Royal Air Force Bomber Command Losses of the Second World War - Volume 2: 1941. Hinckley: Midland Publishing.
Record updated on 7 January 2018.