Hi JoAnn
My great great grandmother Elizabeth b1817 in Carmarthen was the daughter of John Bona and his wife Elizabeth nee Jones.She lived in Merthyr Tydfil where she married my gg grandfather John Davies.On her marriage certificate her surname is spelt Bonner but as she could neither read or write she probably wasn't aware of this.
I have recently been in contact with the gg grandaughter of Elizabeth's sister Anne b1813, who tells me Anne was born and married in Carmarthen and also settled in Glamorgan.
Regards Bron