Circular
[2] Mr. Black (Secretary of State) to all the ministers of the United States.
Department of
State,
Washington, February 28, 1861.
Washington, February 28, 1861.
[3] Mr. Seward (Secretary of State) to all the ministers of the United States.
Department of
State,
Washington, March 9, 1861.
Washington, March 9, 1861.
[4] Mr. Seward to ministers of the United States in Great Britain, France, Russia, Prussia, Austria, Belgium, Italy, and Denmark.
Department of
State,
Washington, April 24, 1861.
Washington, April 24, 1861.