(January 18, 1815 – February 1, 1885) was an American politician who served as a Deputy from South Carolina to the Provisional Congress of the Confederate States from 1861 to 1862.
He also served as a senior officer of the Confederate States Army in the Eastern Theater of the American Civil War.
Chesnut, a lawyer prominent in South Carolina state politics, served as a Democratic senator in 1858-60, where he proved moderate on the slavery question.
But on Lincoln's election in 1860, Chesnut resigned from the U.S.
Senate and took part in the South Carolina secession convention, later helping to draft the Confederate States Constitution.
As aide to General P.G.T.
Beauregard, he ordered the firing on Fort Sumter and served at First Manassas.
Later he was aide to Jefferson Davis and promoted to Brigadier-General.
Chesnut returned to law practice after the war.
His wife was Mary Boykin Chesnut, whose published diaries reflect the Chesnuts' busy social life and prominent friends such as John Bell Hood, Louis T.