Christine, there was a Bannan connection with Radcliffe in Andreas, but too late for the family you are looking for.
If they connect up later let me know, and I can give you more details about this couple and their children.
Ann Jane RADCLIFFE bapt 11 July 1839 Andreas, married 21 July 1860 Andreas Robert BANNAN laborer Andreas, father Robert Bannon, shoemaker. Ann Radcliffe Andreas, father John Radcliffe farmer. Witnessed by John James Radcliffe [Ann Jane’s eldest brother]. Ann Jane BANNAN, aged 67, buried German 25 Mar 1910?

Sue