That's All, Brother[a] is a Douglas C-47 Skytrain aircraft (the military version of the civilian DC-3) that led the formation of 800 others from which approximately 13,000 U.S. paratroopers jumped on D-Day, June 6, 1944, the beginning of the liberation of France in the last two years of World War II.

After the war it was returned to the United States and sold to civilian owners, eventually falling victim to neglect until it was found in an Oshkosh, Wisconsin, boneyard in 2015, facing imminent modification to be converted into a modern turboprop-powered aircraft.

[2] The C-47's name, painted on its nose, was chosen by Army Air Forces Lt. Col. John M. Donalson, commander of the 87th Troop Carrier Squadron, who flew the plane during the operation, as a "message to Adolf Hitler" that Nazi Germany's days were numbered.

[4] When the war began, John Donalson, who flew with the 106th Observation Squadron of the Alabama National Guard, was transferred from the Pacific theater to Europe.

For Operation Overlord, the 1944 invasion of Normandy which opened the western front, it was necessary to cut holes in the plane's fuselage for extra equipment.

During the decades after the war it passed through 12 private owners, who generally kept it in good condition, never crashing or seriously damaging it as they put it to a variety of uses, although none of them were apparently aware of its historic importance.

The owner had flown it to Basler's location at Wittman Regional Airport, and the company had put it in their boneyard to await the procedure, scheduled to begin within six months.

[3] In 2015, after the rediscovered plane was put on public display for the first time at the EAA AirVenture Oshkosh air show,[8] a CAF executive started a Kickstarter campaign.

Basler's expertise proved necessary when initial assessments revealed substantial metal corrosion, requiring 1,600 hours of repair work.

A removable plate with vintage gauges hides modern avionics equipment for navigation and communications, including automatic dependent surveillance – broadcast.

[3] Afterward, it was flown to San Marcos so the Central Texas Wing could finish the restoration and turn the plane into a flying museum.

[10] The aircraft was also featured during the 2019 Paris Air Show.Another goal of the restorers has been to identify the paratroopers who went to Normandy aboard That's All, Brother and reach out to them or their descendants.

[4] In March 2019, the CAF learned that one of the few surviving D-Day paratroopers, although not one who had jumped from That's All, Brother, was not expecting to attend the 75th anniversary ceremonies in France due to his own failing health.

After spending several days training in safety procedures in Oxford, Connecticut, the convoy flew through the same airbases, hopping a northerly route across the ocean: Presque Isle, Maine; Goose Bay, Labrador; Narsarsuaq, Greenland; Reykjavík, Iceland, then to Prestwick Airport outside Glasgow, Scotland and finally to Duxford Aerodrome in southern England for "Daks Over Normandy" on June 6, 2019.

[3] The CAF plans to add speakers and sensors to make it a "living classroom", where schoolchildren on the plane can understand what it was like to be the paratroopers heading for their drops.