Two Westport residents with long ties to Provincetown, J. Michael Lennon and Donna Pedro Lennon, recently donated a rare copy of that Harper’s issue to the Provincetown Public Library to mark the town’s establishment of an annual public reading of “Moby-Dick.’’ Lennon, author of the acclaimed biography “Norman Mailer: A Double Life,” received the volume as a birthday gift from his brother about 30 years ago.