Offered is a CDV of General Lovell Harrison Rousseau.  Rousseau served as the Captain of the 2^nd
Indiana Volunteers in the Mexican War. 
He was elected to the Kentucky state senate in 1860 but resigned in 1861
to recruit volunteers for the Union.  Rousseau
was commissioned Colonel of the 3^rd Kentucky (Union) Infantry on
September 9, 1861.  He was promoted
Brigadier General on October 1, 1861, and was promoted to Major General on
October 22, 1862.  At Shiloh he commanded
a brigade of D.C. Buell’ Army of the Ohio and at Perryville gallantly led a
division of Alexander McD. McCook’s corps. 
Subsequently, he succeeded to divisional command in G.H. Thomas’ Army of
the Cumberland, serving with distinction at the battle of Murfreesboro (Stone’s
River) in the Tullahoma campaign and at the end of the Chickamauga
campaign.  Although he was not present at
the battle of Chickamauga itself, he rejoined his command the day after.  From November, 1863 , until November, 1865,
General Rousseau had command of the districts of Nashville and of Tennessee,
the latter with headquarters at Murfreesboro. 
He resigned in 1865 to take a seat in Congress.

The image is a bust shot. 
The back mark is “Published by E. & H.T. Anthony, 501 Broadway, new
York, Manufacturers of the best Photographic Albums”.