Debden Airfield was also the home of the famous "Fourth Fighter Group", which destroyed over 1,000 enemy planes during WW2. Aces like Don Gentile and Johnny Godfrey were members of the 4th. Their Squadron symbol was the famous Bantam Rooster with boxing gloves on. All the P51s with red noses and the "WD" initial aircraft codes are all 4th. FG planes.
Just one clarification. The breakout at St. Lo was the culmination of the Normandy Campaign. The Holland campaign came shortly afterwards.
You have an unpublished photo of WD-A, the famous "Ridge Runner", Ace Lt. Pierce Mc Kennon's plane.
http://www.fourthfightergroup.com/resource/WD-A.html