I can't be certain, but judging by the presentation of the 'last three' on the nose, and repeated under the full serial number on the fin, this B17G might have been with the 15th Air Force, possibly based at Amendola, Italy. The shot from the turret looks like the coastline, and is similar to the Amendola region.
To find out more, maybe a check of 15th AF web-sites and or Veterans Association or Bomb Group sites could bring up more info. You'll find that many of these have lists of known crew members, from which you may get a start point to dig deeper.
Sorry I can't be of more help, but the subject is just outside of my main interst source re the USAAF's.