Here is a little better history of the 78th FG "The Duxford Eagles" during WW2.

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Group... Group Type...... Motto 78th.......... Fighter........... "Above The Foe"
Squadrons Sqdn....Code.... Type....... Dates Comment 82nd..... MX..... Fighter...... 1942-1945
83rd...... HL...... Fighter..... 1942-1945
84th..... WZ..... Fighter...... 1942-1945
Aircraft: Type.....Name............... ManufacturerP-38.... Lightning.......... Lockheed
P-47.....Thunderbolt.......Republic
P-51.... Mustang............ North American
History Constituted as 78th Pursuit Group (Interceptor) on 13 Jan 1942. Activated on 9 Feb 1942. Redesignated 78th Fighter Group in May 1942. Trained for combat with P-38's and served as part of the air defense organization. Moved to England, Nov-Dec 1942. Assigned to Eighth AF. Lost its P-38's and most of its pilots in Feb 1943 when they were assigned to Twelfth AF for service in North Africa. Began operations from England with P-47's in Apr 1943, converted to P-51's in Dec 1944, and continued combat until Apr 1945.
Flew many missions to escort bombers that attacked industries, submarine yards and docks, V-weapon sites, and other targets on the Continent. Also engaged in counter-air activities and on numerous occasions strafed and dive-bombed airfields, trains, vehicles, barges, tugs, canal locks, barracks, and troops. In addition to other operations, participated in the intensive campaign against the German Air Force and aircraft industry during Big Week, 20-25 Feb 1944; helped to prepare the way for the invasion of France; supported landings in Normandy in Jun 1944; contributed to the breakthrough at St Lo in Jul 1944; participated in the Battle of the Bulge, Dec 1944-Jan 1945; and supported the airborne assault across the Rhine in Mar 1945. Received a DUC for activities connected with the airborne attack on Holland in Sep 1944 when the group covered troop carrier and bombardment operations and carried out strafing and dive-bombing missions. Received second DUC for destroying numerous aircraft on five airfields near Prague and Pilsen on 16 Apr 1945. Returned to the US in Oct. Inactivated on 18 Oct 1945.
Activated in Germany on 20 Aug 1946. Assigned to United States Air Forces in Europe for duty with the occupation force. Transferred, without personnel and equipment, to the US in Jun 1947 and had few, if any, personnel assigned until Nov 1948. Equipped with F-84's in the spring of 1949. Redesignated 78th Fighter-Interceptor Group in Jan 1950. Inactivated on 6 Feb 1952.
Redesignated 78th Fighter Group (Air Defense). Activated on 18 Aug 1955. Assigned to Air Defense Command.
Campaigns Air Offensive, Europe, Normandy, Northern France, Rhineland, Central Europe, Ardennes-Alsace
Stations:Baer Field, IN................ Feb 1942
Muroc, CA......................30 Apr 1942
Hamilton Field, CA .........May-Nov 1942
Goxhill, England............ Dec 1942 345
Duxford, England...........Apr 1943-Oct 1945 357
Camp Kilmer, NJ.............16-18 Oct 1945
Commanders: Name.............................................. Dates Col Arman Peterson.....................
... May 1942
Lt Col Melvin F McNickle....................J
ul 1943
Col James Stone Jr...........................
31 Jul 1943
Col Frederic C Gray Jr.......................22 May 1944
Lt Col Olin E Gilbert......................
....29 Jan 1945
Col John D Landers......................
....22 Feb 1945
Lt Col Roy B Caviness.....................
.1 Jul 1945-unkn