Its worth noting that this wonderful lady also pitched in during WW II. From Wikipedia:
In December 1943 de Havilland joined a USO tour that traveled throughout the United States and the South Pacific, visiting wounded soldiers in military hospitals. She earned the respect and admiration of the troops for visiting the isolated islands and battlefronts in the Pacific.
She survived flights in damaged aircraft and a bout with viral pneumonia requiring several days’ stay in one of the island barrack hospitals. She later remembered, “I loved doing the tours because it was a way I could serve my country and contribute to the war effort.”
You know Leslie Howard, her husband in GWTW was killed in a plane accident during the War......I always heard he was on a secret mission