army as colonel of the Ninth Mississippi regiment of infantry in 1861, and for a while commanded at Pensacola, Florida
On February 13, 1862, he became a brigadier-general in the Confederate army, and on April 6th was assigned to the command of the Second brigade of Withers
' division, army of the Mississippi.
He and his command did splendid fighting in the battle of Shiloh
was conducting operations in north Mississippi
he sent Chalmers
with a force of cavalry to make a feint upon Rienzi
in order to cover the movement of a body of infantry to Ripley, Miss.
In executing this order Chalmers
, July 1st, and a stubborn engagement took place.
It lasted from about half-past 8 in the morning till late in the afternoon.
, ascertaining that Sheridan
had been reinforced by infantry and artillery, retired.
advanced into Kentucky
in the summer of 1862 Chalmers
' command was a part of his force, performing its duties with courage and zeal.
In the battle of Murfreesboro
he and his men again rendered brilliant service.
In April, 1863, General Chalmers
was placed in command of the military district of Mississippi and East Louisiana
In 1864 he was assigned to the command of the cavalry brigades of Jeffrey Forrest
, forming the First division of Forrest
This division was subsequently enlarged by the addition of Rucker
bore a conspicuous part in the battle of Fort Pillow
and in all the brilliant campaigns of Forrest
in north Mississippi
, west Tennessee
, as well as in the Tennessee
campaign of Hood
February 18, 1865, he was put in command of all the Mississippi
cavalry in the Confederate
service in Mississippi
and west Tennessee
After the war General Chalmers
was quite prominent in the politics of Mississippi
He was elected to the State Senate in 1875 and 1876, and in 1876 as a representative of his district to the Congress of the United States, serving in the Forty-fifth and Forty-sixth Congresses.