Dear Mr. Abbott,
Thank you for posting your request on History Hub!
We suggest that you request a copy of 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 prior to 1958 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. You can also fax the form to 314-801-9195 OR view the record by visiting the NPRC Archival Research Room in St. Louis, MO. For more information see Official Military Personnel Files (OMPF), Archival Records Requests.
Copies of most of the monthly rosters from November 1912 - 1943 and 1947 - 1959 for Army units (including Army Air Corps) are in the custody of the National Archives at St. Louis, MO. For access to these records, please write to the National Archives at St. Louis, ATTN: RL-SL, P.O. Box 38757, St. Louis, MO 63138-0757 or via email at firstname.lastname@example.org. Rosters for units serving in World War II from 1944 - 1946 were destroyed in accordance with Army disposition authorities.
You also may wish to review Hickam Field (US National Park Service); and Hickam Field (Hickam Air Base, Hickam AFB), Hawaii, United States websites.
We hope this is helpful. Best of luck with your family research!