Hi Rosie99,
Bith certificate says they were married at Llanbeblig parish church in 1845. Witnesses were two Williamses, probably children from a former marriage. Family talk says he was much older than Annie, and died a few years after the marriage.She was back in Caernarfon and married/widowed again by the late 1860s. She had two daughters, one of whom married my grandfather. The family, including children by grandfather lived in Uxbridge Square Caernarfon.