Found a photo of this soldier who attended a memorial service in Normandy in 2009. Captured this image from this site, in case you might want to reach them for more info.
Even though the subtitles are in French, this slideshow refers to the 360th.
I've translated it from French.
His name was Claxton Ray and he was an officer in the US Army at the time of the liberation of Brest in 1944. He took a series of photographs showing the state of destruction of the city after four years of occupation by the Germans and 43 days of violent fighting for his release. Exceptional documents now held by a Canadian university.
https://dai.ly/x5c8uu2
I would strongly suggest getting in touch with NARA in Maryland, for they have info on almost every unit in WWII. You may be able to acquire the 360th's archived army files, which would contain reports, map, photos etc.
I did this for my father's unit and it was a very successful venture.