Career
Boysen joined the Royal Flying Corps in June 1917. After training, he was assigned to 66 Squadron to fly a Sopwith Pup. He would not have any success until the unit re-equipped with Sopwith Camels and transferred fronts from France to northern Italy.
He scored a victory in December 1917.
In January 1918, he crashed while landing in a fog, and was injured.
