[4] Nicknamed Bumby as a toddler by his mother "because of his plump teddy-bear qualities",[5] he spent his early years in Paris and the Austrian Alps, and spoke French throughout his life.

[6] Known for his sense of humor, in late 1943 at Camp Shanks near Orangeburg, New York, he overheard two older men (one of whom he recognized) in a bar arguing over who was the better writer, Ernest Hemingway or William Faulkner.

[7] While on a leave in Algiers, he met with his father's third wife, Martha Gellhorn, whom Jack called his "favorite other mother", who was on her way to Italy to work as a war correspondent with the French Forces.

[2] In France in late October 1944, Hemingway was wounded and captured by the Germans[1] behind enemy lines in the Vosges,[8] and was held as a POW at Moosburg Prison Camp until April 1945.

[2] Upon his release, he was flown to Paris in time to join the crowds celebrating VE-Day on May 8, 1945, in the Champs Elysees so beloved by his parents,[2] and he was awarded the Croix de Guerre by the government of France for his wartime service.

[10] After the war, he was stationed briefly in West Berlin and Freiburg im Breisgau in Germany, and at Fort Bragg, North Carolina,[10] before leaving the army.

[13] In a 2013 television documentary film Running from Crazy,[14] Mariel spoke of her family's struggles with alcoholism, mental illness, and suicide.

Idaho's trout stocks increased as a result of Hemingway's success in getting the state to adopt a catch and release fishing law.

[19] He is buried in Idaho at the Ketchum Cemetery, next to his wife Puck, daughter Margaux, father Ernest, step-mother Mary and half-sister Gloria.