Erwin Bleckley & Harold Goettler
- 2nd Lt Erwin R Bleckley
– Air Force History and Museums Fact Sheets - Lt Erwin R Bleckley Display
– National Museum of the United States Air Force - Erwin Russell Bleckley World War I
U.S. Army Air Service Medal of Honor Recipient
– Congressional Medal of Honor Society - Erwin Bleckley
– National Medal of Honor Museum - Kansas Medal of Honor Recipients- a War Memorial
– Historical Marker Database (HMDB.org) - Positively Kansas Episode 405
2018-10-29 – PBS Kansas on YouTube (video & transcript)- “Erwin Bleckley’s courage helped save many lives, while costing him his own. Learn about this Kansas World War One hero who sometimes gets overlooked, but was one of American history’s greatest.”
- Harold Ernest Goettler – Wikipedia
- 2nd Lt. Harold E. Goettler – Air Force History and Museum Program
- Harold Goettler – Graceland Cemetery and Arboretum
DH-4
- Legends of the Sky: The Liberty Plane – Episode 1
2022-11-17 – PBS (video & transcript) - Airco DH-4 – Wikipedia
- De Havilland DH-4 – National Museum of the US Air Force
- De Havilland DH-4 in peace and war – U.S. National Parks Service
- Flying the Liberty Plane – The Doughboy Foundation
- Liberty DH-4 50th Aero Squadron USAS – Historical Miniatures by George Grasse
Lost Battalion
- Lost Battalion – Wikipedia
- The Lost Battalion of WW1 – National Archives
- The Lost Battalion, How 650 Americans held off the Germans for 6 Days – YouTube
Liberty V-12 Engine
- Engines of Our Ingenuity – The Engines of Our Ingenuity
- Liberty L-12 Engine – Wikipedia
- Liberty 12 Model A, V-12 Engine – National Air & Space Museum
50th Aero Squadron
- Side Story: 50th Aero Squadron – WW1 Centennial Commission
- 50th Attack Squadron – Wikipedia
- 50th Aero Squadron, Harold Goettler & Erwin Bleckley – USAWW!