Dear Mr. Gibb,
Thank you for posting your request on History Hub!
The National Archives at College Park - Textual Reference (RDT2) has custody of microfilm copies of operational records relating to U.S. Army Air Force/U.S. Air Force units. We searched the Air Force History index to the microfilm and located 252 files related to the 9th Air Force and 24 files related to Belem, Brazil for the time period you are interested in. Please read the brief Abstract to determine which records you are interested in and click on the specific PDF icon. In the PDF listing, the IRISREF is the microfilm reel number and note the FRAME and FRAMELST numbers for the location on the reel. If the reel number begins with A, B or C, please contact RDT2 via email at email@example.com for access to them.
If the reel number begins with D - Z, the microfilm is still security classified and RDT2 will not be able to make the reel available to you. The original paper copy from which the film was created is still in the custody of the Air Force Historical Research Agency (AFHRA) and has been declassified. To obtain copies of these records, please follow the instructions on this page.
You also may search the Air Force History Index for records related to your father’s specific unit number if you have that information. If not, then you may be able to find it in his Official Military Personnel File (OMPF). OMPFs and individual medical reports for enlisted men of the U.S. Army who were separated from the service after October 1912 and before 1959 are in the custody of NARA's National Personnel Records Center in St. Louis. In many cases where personnel records were destroyed in the 1973 fire, proof of service can be provided from other records such as morning reports, payrolls, and military orders, and a certificate of military service will be issued. Please complete a GSA Standard Form 180 and mail it to NARA's National Personnel Records Center, (Military Personnel Records), 1 Archives Drive, St. Louis, MO 63138-1002. For more information see Official Military Personnel Files (OMPF), Archival Records Requests.
Plus, we searched the National Archives Catalog and located the series Black and White and Color Photographs of U.S. Air Force and Predecessor Agencies Activities, Facilities, and Personnel - World War II and Korean War, ca. 1940 - ca. 1980 in the Records of U.S. Air Force Commands, Activities, and Organizations (Record Group 342) that includes 22 photographs related to Belem, Brazil that might be of interest to you. The photographs have been digitized and are available using the Catalog. For any questions about these records, please contact the National Archives at College Park - Still Pictures (RDSS) at firstname.lastname@example.org.
Due to the COVID-19 pandemic and pursuant to guidance received from the Office of Management and Budget (OMB), NARA has adjusted its normal operations to balance the need of completing its mission-critical work while also adhering to the recommended social distancing for the safety of NARA staff. As a result of this re-prioritization of activities, you may experience a delay in receiving an initial acknowledgement as well as a substantive response to your reference request from RDT2 and RDSS. Also, the NPRC is closed except for emergencies. Currently, NPRC will continue servicing requests ONLY associated with medical treatments, burials, and homeless veterans seeking admittance to a homeless shelter. If your request is urgent, please see Emergency Requests and Deadlines. Please refrain from submitting non-emergency requests such as replacement medals, administrative corrections, or records research until NPRC returns to pre-COVID staffing levels. Please check archives.gov/veterans for updates to the NPRC operating hours and status. We apologize for any inconvenience.
Finally, the Army Air Corps Museum offers some information on their website about the 9th AF - 9th Air Force - WWII - World War II that might be relevant to your research.
We hope this information is helpful. Best of luck with your family research!