Possibly this man: Hugh B Smyth from the 333rd FS, 318th FG, lost July 8, 1945.
https://www.abmc.gov/node/527816#.VwKJ1pwrLMo
From the Daily Republican newspaper in Mongongahela, PA of Aug 6, 1945 there is this:
"Mr. and Mrs. Hugh Smyth, 842 Donner avenue, have been notified that their son, Lt. Hugh B. Smyth, was killed in action over Kyushu, Japan proper, July 8."
The next sentence in the article, however, seems to contain an "error":
"He was pilot of a B-29, based on Okinawa."