Sarah was born about 1706 in Limerick, Ireland, the daughter of unknown parents.
She has died but the date and place are unknown.
Her husband was Thomas Dunagan, who she married in 1726. The place has not been found. Their six known children were Joseph (1740-1810), Charles (?-c1813), Thomas (c1727-1810), John (<1730->1780), Joshua (c1737-c1798) and William (1738-1798).