It was near the close of the year 1780 that a solitary traveler was seen pursuing his way through one of the numerous little valleys of Westchester. The easterly wind, with its chilling dampness and increasing violence, gave unerring notice of the approach of a storm, which, as usual, might be expected to continue for several days; and the experienced eye of the traveler was turned in vain, through the darkness of the evening, in quest of some convenient...