 After the evacuation of Harper's Ferry, beginning on June 20, Jackson fell back to Martinsburg and "forty-two locomotives and their tenders at that important railroad center, in addition to 305 cars, chiefly coal gondolas, were given the torch.Railroad historian Thomas Weber presents a different scenario regarding the dates and the events culminating in the capture of significant rail stock.Weber does not mention the May 23 raid but does state that on May 28 Confederate forces occupied of the B&O line.