Complex sentence: Patrick Anderson was the son of James Anderson, a early Scot (@ 1707) immigrant to Pennsylvania and Elizabeth Jerman (Jarman), the daughter of Thomas Jerman, a Welsh Quaker, who purchased one of William Penn's first grist milling licenses.
Split into simpler sentences: Patrick Anderson was the son of James Anderson, a early Scot immigrant to Pennsylvania and Elizabeth Jerman (Jarman). The daughter of Thomas Jerman, a Welsh Quaker, who bought one of William Penn's first grist milling licenses.