It can be very difficult to find personnel information on World War II veterans. However you can write to the National Personnel Records Center located at 9700 Page Boulevard, St. Louis, Missouri 63132.
Unfortunately there were an untold number of military records that were destroyed by a fire in the St. Louis depository, which reduces the chance of finding the information, but hopefully you will be one of the lucky ones. If your relative was wounded and hospitalized there is also a chance that the Veterans Administration would have some records.
Operated by the National Archives is "eVetRecs," an online service to request personnel information from your, or your relative's, military personnel records. Please be aware that in order to request information about a relative, you must be their next-of-kin.
Did You Know?
A PBY plane piloted by Lt. Jean Cusick was sent from Dutch Harbor, on June 3, 1942, to locate Japanese forces in the Pacific. He was shot down by enemy fighters en route. Five men out of the seven-man crew survived the crash and got into life rafts. Cusick and his enlisted pilot died on the rafts from their wounds. The other three were captured by the Japanese, and became the first prisoners of war in the Aleutian Campaign.