You asked where in Co Antrim Houghall is but I think you may mean 'Ahoghill'.
The locals (of which I'm one a number of years ago!) have abroad accent and tend to drop the 'A'. The 'hoghill' which is left sounds like Houghall in the local dialect.
Ahoghill is about 3 miles from Ballymena in Co Antrim.
If you have any more questions please feel free to give me a shout!