Quote-
Emily Dinah Voake left her a good sum of money because the story was that Alice and Charlie ran away from Fowler's Bay to get married -end Quote
Well, 2 or 3 children were born to the couple before the 1906 marriage so quite possible they left the OAKES because number one was on the way.
My thoughts on the permission matter and
not knowledge based

The wording.
'Aborigines Act'
No marriage of a female aboriginal with any person other than an aboriginal shall be celebrated without the permission, in writing, of the Chief Protector.
This law is not about age of either party. It applies regardless of age.
Perhaps this couple had furnished the consent document and it is considered as separate to marriage certification document.
Therefore from the striking through of the section relating to minors we infer-- both off age.
It is noteworthy that the 2 prenuptial births were registered in the surname GURNEY indicating they were a couple which in itself was an offence according to the Act.
There may be others here who have a better understanding of the ramifications than me.
Sue