Complex sentence: He first married Mary Storre, the daughter of Thomas Storre who was the vicar of Bilsby; he became the Bilsby vicar himself upon the death of his father-in-law in 1623 and held that position for ten years.
Split into simpler sentences: He first married Mary Storre, the daughter of Thomas Storre who was the vicar of Bilsby. In 1623, upon the death of his father-in-law, Wheelwright became the Bilsby vicar, and held this position for ten years.