The following maps are drawn from records based in the Bureau of the Public Debt (Record Group 53) at the National Archives and Records Administration Building at College Park, Maryland. The materials are part of larger ledgers (some 600 in number). These are merely preliminary maps based on some initial data mining and will become more refined and user-friendly in time.
Refunded Bond Sales by Location (1871-1872) based out of the United States Treasury Office in London, England.
10-40 Bond Sales (1863-1864) Mapped by National Bank Location and Dollar Amount.