The greater tragedy of this story is that these men might have died because of an instrument failure. They had taken off from their base at Chelveston, 36 miles west of Cambridge and headed for Aalborg in Denmark to bomb the Luftwaffe air base. The group were attacked by enemy fighters and after three of the bombers were shot down the attack was called off and they returned to England, jettisoning their bombs over the North sea.The aircraft, Mi Amigo, had been badly damaged and as the engine problems increased they descended through the cloud and found they were over Sheffield. I'm not sure how they knew it was Sheffield as they were off course, Chelveston lay eighty miles south east of them. From Aalbrerg to Sheffield it's approx 523 miles, to Chelveston it is 530. The irony of this sad event is that if their compass had been working they would have reached Chelveston and crash landed on the very airfield they had departed from, and possibly even survived.