![Cia: Intelligence in the Civil War [Pdf] eBook](https://d15y2dacu3jp90.cloudfront.net/images/attachment_defaults/resource/large/FPO-knovation.png "Cia: Intelligence in the Civil War [Pdf] eBook")
Central Intelligence Agency
Cia: Intelligence in the Civil War [Pdf]
A multi-topic look at intelligence gathering, the tools used, and the people involved in both the North and the South during the Civil War. Comprehensive, interesting coverage from the CIA.
National Women’s History Museum
National Women's History Museum: Belle Boyd
A biography of Belle Boyd, the most famous female spy of the Civil War.
Other
Signal Corps Association: Espionage in the Civil War
Read about the murky underground stories of espionage on both sides of the Civil War. The spies were often eccentric, and the raiders ruthless.
American Battlefield Trust
American Battlefield Trust: Civil War Biography: Maria "Belle" Boyd: Spy
Biographical profile of Belle Boyd, Confederate spy.
A&E Television
Secret Agents in Hoop Skirts: Women Spies of the Civil War
Find out more about Rose O'Neal Greenhow and three other female informants who played a significant role in America's bloodiest conflict, the Civil War.