About William , oldest son of John and Jemima
https://books.google.com/books?id=YdkyAQAAMAAJ&pg=PA811&lpg=PA811&dq=john+blackstone+and+jemima+king&source=bl&ots=0zapj4w9DR&sig=P7gj4gCLeM3qretIBZ47F0stdA0&hl=en&sa=X&ved=2ahUKEwji5eP4geDbAhVFWq0KHftLBi4Q6AEwBHoECAMQAQ#v=onepage&q=john%20blackstone%20and%20jemima%20king&f=false