I have been researching many (Australian) military/archival records and found a relatively small number of people who signed up for WWI and WWII did so in a name different to their birth name. For example, Campion signs up as Champion but with different initials OR Jones signs up as Joins with same initials.In those times literacy would have been an issue, but that would be making and assumption on unknown facts. On many occasions when correspondence (injury, fatality) went to the Next of Kin (NOK), the NOK raised the correct (birth) name). (In some cases the NOK name, shown on enlistment papers, made it obvious a fictitious name was being used. I have found some records are shown as Birth Name (AKA sign up name), others signup name (AKA Birth name.
What is the correct order of protocol for showing the various names in official Government records?