""A Popular Memoir of William Penn"" is a biography of the famous Quaker leader and founder of Pennsylvania, William Penn. Written by Jacob Post and first published in 1850, the book covers Penn's life from his birth in England in 1644 to his death in 1718. The book details Penn's early life as a member of the Anglican Church, his conversion to Quakerism, and his role as a leader in the Quaker movement. It also explores Penn's efforts to establish...