Named for Massachusetts governor John Albion Andrew--who prevented these two companies from joining the nationalized Berdan's sharp-shooters so that their families could continue to receive state aid--the Andrew Sharpshooters often transferred from unit to unit as the need for their unique, long-range shooting skills changed. This first chronicle of the Massachusetts Andrew Sharpshooters details their day-to-day activities and their courageous service at Seven Pines, Antietam, Fredericksburg, Chancellorsville, Gettysburg and numerous other Civil War battles. Thorough historical and genealogical information on every man who served in the unit completes this study of these significant but overlooked foot soldiers.