Pratt must be paid. There was a route to examine one last time, and three shirts to stuff into a knapsack bulging with flannels and history books, powder and shot. The Berkshire Hills trip was a rush job; he needed to return for graduation in late August, 1844. Into the knapsack went a 4” x 2½” dusky-green journal, with shorthand notes in pencil. After a boyhood spent hunting and riding bareback on the Medford frontier, the blue-eyed Harvard senior, 20, knew how to pack for a research errand into the wilderness. Already, he boasted colorful adventures from past summer forays, fine-tuning the field skills that history professor Jared Sparks did not cover in class. Take July 1841: Scaling his first New Hampshire ravine, the rookie historian slipped and swung free, clawing air. As he “shuddered” and clung to the crag, a hard sheaf of pebbles fell, “clattering hundreds of feet” to the sunny gulf below.