Morgan Calvin Hamilton (February 25, 1809 – November 21, 1893) was an American merchant, politician from Alabama and Texas, and brother of Andrew Jackson Hamilton. Both men were unusual as Unionists in Texas during the American Civil War. Early life and education Morgan Calvin Hamilton was born in Madison County, Alabama near Huntsville. His siblings included Andrew Jackson Hamilton. He moved to Texas when it was still part of Mexico and worked there as a merchant. 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. He settled in Austin. One of the few Texan abolitionists, Hamilton fought for Union forces in the Civil War. During Reconstruction, he was elected by the Texas state legislature to the US Senate as a Radical Republican. He is buried in the Oakwood Cemetery in Austin, Texas. External links Biographic sketch at U.S. Congress website 1809 births 1893 deaths People from Madison County, Alabama Republican Party United States senators from Texas Liberal Republican Party United States senators from Texas Texas Republicans Texas Liberal Republicans 19th-century American politicians American abolitionists People of Texas in the American Civil War Southern Unionists in the American Civil War Burials at Oakwood Cemetery (Austin, Texas)