When a soldier went MIA during WWII and did not return to their unit or any unit, they were declared deceased one year plus one day after going MIA. If you have not requested the IDPF (Individual Deceased Personnel File) you should. It will have details about his death, likely a bit of service information, sometimes pieces of the MACR and a Finding of Death for 1944. They may have recovered his remains in 1946 but the official date of death would be 1944 due to the laws at that time. To request the IDPF sent a request with as much info as known about the soldier to: Department of the Army U.S. Army Human Resources Command ATTN: AHRC-FOIA 1600 Spearhead Division Avenue, Dept 107 Fort Knox, KY 40122-5504 It takes up to 48 weeks to receive free of charge unless they have already scanned it. The files are being moved from Suitland, MD to Ft. Knox, scanned and saved there. There are also Sortie reports (mission reports) if this man was on a bomber. Maxwell Air Force Base has these records. Also check the 90th bomber group and 321st BS to see if they have reunion groups or associations. Many of these groups are digitizing reports and posting online or their historians have them but they are not digitized. Worth checking into. Good luck. Jennifer