First , it had a good harbour which was ultimately developed into Port Talbot , named in honour of the squires of Margam .
With the coming of the industrial revolution , the parish of Margam became important for two reasons .
First , Margam had a good harbour which was ultimately developed into Port Talbot , named in honour of the squires of Margam .
With the coming of the industrial revolution , the parish of Margam became important for two reasons .