This copy of John Watson Sr.'s narrative of the 1737 Walking Purchase, written in 1815, was made by Watson's son in 1822. The elder Watson's narrative was printed with corrections and additions by the son in the Pennsylvania Correspondent, Doylestown. The volume includes the younger Watson's report of the recollections of Moses Bartram, his own commentary on the Walking Purchase, and a letter (1822) about this manuscript.

These letters relate principally to provincial business and comment on the Indians of Pennsylvania, the French and Indian War, a survey of the Maryland-Pennsylvania boundary, and the Stamp Act. Correspondents include James Burd, Jeremiah Dixon, Joseph Galloway, Humphry Marshall, Charles Mason, Edward Shippen of Lancaster, and Edward Shippen, Jr.