Having attended Princeton and Harvard, Biddle was an attorney when he joined the French Air Service. After the war ended, he wrote "The Way of the Eagle."
Croix de Guerre
"Pilot of marvellous spirit. Attacked two enemy two-seaters successfully behind their lines, probably shooting down the first. Wounded and disabled in the course of the second combat, by sheer strength he succeeded in landing in no man's land and after passing the day in a shell hole, by night he got back to the Allied trenches." Croix de Guerre citation