Looking for Banham of UK

The father of HUGH ISAAC BANHAM was ISACK BANHAM wife MARY BANHAM ISACK was born 1n 1842 and died in 1877 I believe his father was ABRAHAM BANHAM born 1n 1818 and died in 1894..there is a feeling within the family that there is Jewish Conections.ISACK was born in cARMARTHEN WALES and at that time there was a large settlement of Jewish people .It would be really good to find some evidence