Scope and Contents note From the Series: Correspondence, accounting records, contracts, drawings, weekly construction reports, payroll information, work estimates, invoices, and receipts documenting the day-to-day construction of the section of the Illinois Central Railroad around Centralia, Illinois. Includes a substantial amount of correspondence between Isaac S. Metcalf and Illinois Central Chief Engineer Roswell B. Mason, who supervised the building of the entire line from Chicago to Cairo, Illinois, between 1851-1856. Metcalf...