Reference: Alabama Department of Archives & History. Custodian of the original pictures. Confederate Officers photo album. http://www.archives.alabama.gov/conoffalb/index.html
Humphrey Marshall, a nephew of the anti-slavery leader, James G. Birney, was born at Frankfort, Kentucky, January 13, 1812. A year after his graduation from West Point in 1832 he resigned his army commission to become a lawyer. He was colonel of the 1st Kentucky Cavalry in the Mexican War. He was elected to Congress in 1848 on the Whig ticket, and was re-elected in 1850. After serving for a year as U. S. minister to China, he re-entered Congress in 1855 and remained until 1859, having declined to run for re-election the preceding year. A Breckinridge supporter in 1860, Marshall endeavored to maintain the border states in a posture of neutrality. When this attempt failed he accepted a commission as brigadier general in the Confederate Army on October 30, 1861. Marshall's military record was not remarkable; his most outstanding success was a minor affair at Princeton, (West) Virginia. Resigning from the army on June 16, 1862, he was reappointed four days later to rank from the date of his hrst appointment; however, the records of the Confederate Senate do not reveal that the second appointment was submitted for confirmation. After participating in Bragg's Kentucky invasion in the fall of 1862, he saw no further active service. He resigned a second time on June 17, 1863, after which he practiced law in Richmond, and was elected a member of the Second Confederate Congress (from Kentucky), serving until the end of the war. General Marshall fled to Texas after the collapse of the Confederacy. He returned to Louisville in 1866, and practiced law there until his death, March 28, 1872. He is buried in the State Cemetery at Frankfort.
Ref: Generals in Gray, Lives of the Confederate Commanders
by Ezra J. Warner. Printed by Louisiana State University Press, Baton Rouge and