I have a female relative who was born and raised in San Francisco but traveled to Hawaii in mid 1941. I don't have a record of her from 1941 to 1946 until I have record of her coming back to San Francisco via a US Air Force plane in Dec 1946 (I'm not sure the originating location). I believe she was married during this entire time.
I am in the process of ordering the record because it is fuzzy online but it definitely says that she had a US War Department Identity Card. I'm not sure what this was for but am trying to figure out what caused this flight back to the US (it seems odd to me but maybe it wasn't for the time).