Paper soldiers on the march, and tin men tilting at swordpoint: these were the first battle ranks that Grenville Howland Norcross, aged 11 in Civil War Boston, led to glory. Between phantom invasions and replays of Antietam with “relics” received as gifts, Norcross gobbled up the military heroics popularized by the era’s dime novels. In a childhood diary that illustrates how “lowbrow” literature grabbed the imagination of a warsick homefront, Norcross chronicled his progress through the antics of Kate Sharp, Old Hal Williams, and Crazy Dan. By 1875, Norcross had outgrown his toy battalions, graduated Harvard, and stepped into a law career. An avid autograph collector, from his Commonwealth Avenue perch Norcross nurtured the city’s flourishing history culture, taking a leading role at the New England Historic and Genealogical Society, the American Antiquarian Society, and the Bostonian Society. He rose to serve as Cabinet-Keeper for the Massachusetts Historical Society, supervising the intake and cataloguing of major collections including, by April 1920, the library of historian Henry Adams. At the Society’s next meeting, held in the midafternoon of 10 June, Grenville Norcross reported on the Cabinet’s newest curiosity, which has proven a royal mystery ever since: