Executive Department	Secretary	Service Dates
Secretary of State	William H. Seward	1861
Secretary of the Treasury	Salmon P. Chase	1861-64
	William P. Fessenden	1864-65
	Hugh McCulloch	1865
Secretary of War	Simon Cameron	1861-62
	Edwin M. Stanton	1862-65
Attorney General	Edward Bates	1861-64
	James Speed	1864-65
Postmaster General	Montgomery Blair	1861-64
	William Dennison	1864-65
Secretary of the Navy	Gideon Welles	1861-65
Secretary of the Interior	Caleb B. Smith	1861-63
	John P. Usher	1863-65

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