|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. 2018 1940 USAAC Serial Numbers. Joe Baugher's Home Page. Retrieved 1 April 2018 from <http://www.joebaugher.com/usaf_serials/1940.html>.
National Archives of Australia [NAA] 1945, RAAF Unit History sheets (Form A50) [Operations Record Book - Forms A50 and A51] Number 18 NEI [Netherlands East Indies] Squadron, A9186, 40.
Pacific Wrecks 2018 A-20A "Old Man Mose" Serial Number 40-101. Retrieved 2 April 2018 from <https://www.pacificwrecks.com/aircraft/a-20/40-101.html>.
Record updated on 2 April 2018.