Isaac Broughton was the son of Christopher Broughton (1689) and Mary Paretree was born in 1736 and christened on 5th September 1736 at Edgefield. His name appears as Isaac in the church register but as William in the archbishop's transcripts.

Sources
• 1. Ralph Broughton's Data. Isaac or William Broughton. Christened 5 September 1736 at Edgefield. Father: Christopher. Mother Paretree. He appears as Isaac in the church register but as William in the archbishop transcripts.