Born in
Erie, Greene (now
Hale) County,
Alabama, the son of Thomas Hord Herndon, Sr., and Sarah Emma Toulmin Herndon. His mother was the daughter of federal Judge
Harry Toulmin. Herndon attended a private school, graduated from the
University of Alabama at Tuscaloosa in 1847 and attended the law school of
Harvard University in 1848. He was
admitted to the bar of Alabama in 1849 and commenced practice in
Eutaw, Alabama. He also was the editor of the
Eutaw Democrat in 1850. Herndon moved to
Mobile, Alabama in 1853 and resumed the practice of law. In 1857 and 1858 he served as member of the State house of representatives and became a trustee of the
University of Alabama in 1858. He returned to Greene County in 1859 and served as member of the State secession convention in 1861. During the
Civil War he volunteered for the
Confederate States Army and joined the
36th Regiment Alabama Infantry as a Major. He ended the war as the regiment's Colonel and was wounded twice in battle. After the war he moved to Mobile and once again resumed the practice of his profession. He was an unsuccessful Democratic candidate for Governor of Alabama in 1872, though he was elected as member of the State constitutional convention, which met September 6, 1875, and served as member of the State house of representatives in 1876 and 1877. Herndon was elected as a
Democrat to the
Forty-sixth,
Forty-seventh, and
Forty-eighth Congresses and served from March 4, 1879, until his death in
Mobile, Alabama, March 28, 1883, before the convening of the Forty-eighth Congress. He was interred in
Magnolia Cemetery. ==See also==