... [William Bradford, Sr.'s] paternal grandfather was John Bradford, a merchant of London, whose brother, Samuel Bradford, was Bishop of Rochester and Dean of Westminster, and his paternal grandmother was Mary Skinner daughter of Matthew Skinner, M. D., of London, and a granddaughter of Robert Skinner, Bishop of Bristol. Several of his ancestors had also been closely connected in an official way with St. Ann's Parish, London. His paternal great grandfather, William Bradford, was a parish officer therein during the great plague of 1665, and of whom is a recorded that "so conscientious was he in the performance of his duties that he remained in London, giving his personal attention to the sick and dying, through he removed his family to Islington. ...