Yellow Sun: If you followed ORAC's link and then scrolled through the links to the 364th Bomb Squadron, you'd see that it does give Aalborg as their target, Day 3 of "Big Week"
Aalborg was a big Luftwaffe base, with both Bf109 and Fw190 fighters based there, so they were able to get into the formations above their base while the bombers were trying to locate the airfield and avoid bombing civilians.
It also implies that 3 of the crew were mortally wounded (seems to be radio operator, ball and rear turret gunners) but how that information was gathered I can't say, perhaps a report did get through to their base.
If the navigator was also wounded, that might explain them being so far off course. The weather that day had heavy cloud up to over 20,000 feet, making formation keeping impossible and accounting for the 39 bombers, out of some 790 despatched, shot down and 141 with battle damage.