...n the afternoon the command halted two miles beyond White Post. Moved on the twenty-first to Berryville, on the twenty-second to Roper's farm, on the road to Charlestown, and on the twenty-third to Shepherdstown . On the twenty-fourth it crossed the Potomac, and moved to Boonsboroa, on the twenty-fifth to Hagerstown, on the twenty-sixth two miles beyond Greencastle, and on the twenty-seventh through Chamb...