Thank you for contacting the History Hub.
We suggest that you request a copy of his Official Military Personnel File (OMPF). OMPFs and individual medical reports of those who served in the military (since you did not specify Army or Air Force of which there is a base for both in Anchorage, Alaska) are in the custody of NARA's National Personnel Records Center (NPRC) 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. Veterans and their next of kin also may use eVetRecs to request records. See eVetRecs Help for instructions. For more information see Official Military Personnel Files (OMPF), Archival Records Requests.
We do wish to caution you, that due to the COVID-19 pandemic, 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 this inconvenience and appreciate your understanding and patience.
Additionally, we found the series Unit Histories, 1943- 1967 of which you can search for records relating to Fort Richardson, Alaska (the name of the Army installment in Anchorage) to discover any file units on that base. (we found 9). For more help we recommend you reach out to the National Archives at College Park - Textual Reference (RDT2) at firstname.lastname@example.org.
We hope that this information has been helpful and good luck with your research.