Cursory reading of the strategic and tactical opertion for that day indicate several long range heavy bomber missions into Germany, Poland and Austria with take-off from ETO based a/c as well as MTO bases.
Flights departing in both theaters of operation were adversely effected by weather, with several aborts, recalls, and diversions to secondary targets and targets of opportunity.
As pointed out by LNT below, it is unlikely that this camp was a designated target, and as he points out, particular structural features are difficult to identify a high bombing altitude.
Condidering two factors may serve to narrow the scope of your research.First is the number of bombs which fell. 70-odd.Considering that there were about 8-10 bombs average load in a heavy, this would be a concentration of 7-10 aircraft.My working theory is that this area was hit as a secondary target, or, target of opportunity.
The observation made that there was nothing of value in this area is incorrect.Bombing Survey records indicate that Wolfsburg was a frequent target as it was the location of the Volkswagen Plant. I did not find any a/c specifically targeting the VW plant as a Primary Target that day.
Diversion from a Primary Target to a Secondary usually allowed for less accuracey since set up for the bombing run at altitude required a long run-in to the target to arrive at an IP (Initial Point) which was the mathematical starting point of the bomb run, which was necessary to input data into the bombsight. (Bombardiers had to input data for airspeed, altitude, barometric pressure, cross wind and weight of bombs. Changes in any of these factors would result in the ordnance NOT hitting the intended target).Primary targets plotted with specific starting, mid and end points usually acheived better results than diversions to secondaries which run-in was calculated in flight from an essentially random point in space.If the VW plant was a planned secondary the results acheived in aiming for it from a random start point would be less than perfect under the best of conditions.
The third possibility is that the misdirected bomb load was simply jettisoned when the flight could not find a target.Bombers did not generally bring their bomb loads back to base with them.It has been determined that this practice of dumping--in an instance attributed to an RAF bomber formation--is what caused the death of band leader Glenn Miller when his single engine transport aircraft was struck by jettisoned bombs over the North Sea.Another tragic accident of war.
In order to determine which Group or Squadron is responsible for this tragedy, you are going to have to do considerable research into the flight plans and operations for each group and plane that sortied that day.It is a large but not impossible task.
"They shall grow not old, as we that are left grow old. Age shall not weary them, nor the years condemn. At the going down of the sun and in the morning We will remember them."