Not only did the "Bryant College Goes to War" collection have two letters by a Sgt. Winston Arthur Harris, there was a comment that began
Thank you so much for posting these letters! My grandfather, Winston Arthur Harris...which suggested a family member as a further contact who might have more information for my search.
While trying to figure out Sgt. Harris' connection to a school in Rhode Island, I noted his return address in the May 14, 1944 letter
644 Bomb Squadron
410 Bomb Group
A.P.O. 140, c/o PM, NY, NYThis was taking my search in a completely opposite direction: while I had previously linked Sgt. Harris to the 124th Cavalry Regiment out of Brownsville, Texas (the location given by Herman Steiner in his Los Angeles Times "Chess" column), the 644 Bomb Squadron was deployed to the European Theater of Operations, not China-Burma-India.
Indeed, if the Wikipedia entry for the 644th is correct, the Bomb Squadron was stationed at Will Rogers Field and Muskogee Army Airfield in Oklahoma in 1943; then Laurel Army Airfield in Mississippi in early 1944; and then Lakeland Army Airfield in Florida; before moving overseas to RAF Birch and RAF Gosfield, in England, in April 1944.
Thus, there is no Brownsville, Texas connection for the 644 Bomb Squadron.
It looks like there may have been (at least) two "Sgt. W. A. Harrises"...