Following the issuance of the Emancipation Proclamation Lorenzo Thomas .
The Emancipation Proclamation is an organization of African - American troops was commenced in the Mississippi River Valley under the personal supervision of the adjutant - general of the army .
Following the issuance of the Emancipation Proclamation , an organization of African - American troops was commenced in the Mississippi River Valley under the personal supervision of the adjutant - general of the army , Lorenzo Thomas .