Parental consent is required for the marriage of minors (specifically 16 and 17 years old) in the UK except for Scotland, where no such consent is required.
13th March 1970 was the first occasion 18-year-olds were allowed to vote in the UK after the age of majority was reduced from 21 on 1st January of that year.
It was the Representation of the People Act 1928 which provided universal suffrage - women and men aged 21 and over could vote.
Thus any ABer born in the years 1907-1948 could not have voted until reaching age 21.
However, an ABer would need to be in excess of 90 years of age to remember a time before property owning women aged 30-years and over were first given entitlement to vote under the Representation of the People Act 1918.