Morgan C. Hamilton, government official, was born near Huntsville, Alabama, on February 25, 1809. He was the brother of A. J. Hamilton. He began work as a clerk in a mercantile establishment and moved to Texas in 1830. In 1837 he moved to Austin. He moved to Washington-on-the-Brazos in 1842 and returned to Austin in 1845. For six years, 1839–45, he served in the war department of the Republic of Texas, first as clerk and in 1844–45 as secretary of war. In Austin he had a mercantile business until 1852, when he sold out and retired from active business. Hamilton was an uncompromising Republican, violently opposed to secession. During Reconstruction he was appointed state comptroller in 1867 and was a delegate to the Constitutional Convention of 1868–69. His participation caused some controversy at the convention, since he was part of a Radical Republican faction that called for the disfranchisement of all former Confederates. He was elected as a Republican to the United States Senate in 1870 and served until 1877. After retirement from public life he traveled extensively. During his last years he resided in Brooklyn, New York, and made occasional trips to Austin. He never married. Hamilton died on November 21, 1893, while visiting in San Diego, California. He was buried in Oakwood Cemetery, Austin, and his fortune was divided among his relatives.