I am going through this process at the moment. I am applying to the MOD for service records for my Great Uncle who was killed in action during WW2.
Follow this link. You then need to download the relevant forms and send them off to the department indicated within the forms.
It costs £30, but beware the records may not exist, as lots were lost during the bombing at Portsmouth. Unfortunately there is no way to tell if the service records are in tact until the search has been made.
Seeing as your father passed away after service, it think you will need to provide a copy of the Death Certificate.
On the MOD website, they state the following:
Under the scheme, and in recognition of the duty of care owed to the family of the deceased subject, for a period of 25 years following the date of death of the subject and without the consent of the next of kin, MOD will disclose only:
- Service Number
- Place of birth
- Date of death (where it occurred in service)
- The date the individual joined the service
- The date of leaving
- Good conduct medals
After this period, and if it is held, in addition MOD will disclose without the requirement for next of kin consent:
- The units in which he/she served
- The date of this service and the locations of those units
- The ranks in which the service was carried out and details of WWII campaign medals