I found an obit for Edward Rhoades Badger; "Mr. Badger served as a First Lieutenant in the U.S. Army 369th Engineer Combat Battalion, in Europe during World War II, in General Patton's Third Army Group."
The 369th Engineer Combat Battalion Constituted 19 October 1944 in the Army of the United States as the 369th Engineer Combat Battalion and organized 31 December 1944 from personnel of the 215th Antiaircraft Artillery Gun Battalion at Marignone, France.
215th AAA Gun Bn organized 20 Jan 1943, parent unit & location unknown.
215th was part of the 31st AAA Brigade, date & location unit joined the 31st unknown.
Activities of the 31st AAA Brigade can be found at:
31st AAA Brigade arrived Oran, North Africa 13 May 1943, assigned to 5th Army, moved to Constantine, Algeria 1 June 43, moved to Hammamet, Tunisia 9 -14 July 43,btwn 31 Oct & 19 Nov 43 moved to Sardinia & Corsica. Landed at St. Tropaz, Southern France on D+7 (August 22, 44) relieved the 105th AAA Group in control of the beach defences. Moved to Marseilles set up defences of Marseilles, Toulon, & Port de Bouc.
No locations for the 215th AAA Gun Bn are mentioned in the 31st Brigade accounts.
The 215th`s only campaign credit for Rome-Arno shows they were on Sardinia/Corsica but no credit for Southern France tells me they probably stayed on Sardinia/Corsica & were later moved to France to be converted to the 369th ECB.
The 215th AAA Gun Battalion was disbanded on 31 Dec 1944 and reorganized as the 369th Engineer Combat Battalion on 31 Dec 1944 at Marignone, France.
Apparently the 369th ECB was assigned to Third Army according to Mr Badgers obit.
Being a converted unit, the 369th was most likey placed in an Engineer Group under Army control, or possibly assigned to a Corps, but not under any infantry division except temporarily for possibly in support of a river crossing.
The 369th ECB has campiagn credits for Central Europe & Rhineland & Occupation duty Germany 2 May - 29 Sept 1945. The unit was at Oberhausen, Germany at the end of World War II (15 August 1945 location).