Thomas, Isaac, 1774-1859. Family Papers, 1802-1851. 0.3 linear ft. Location: D:95. Politician, lawyer, and planter. Thomas moved to Alexandria, Louisiana, in 1819, where he operated a steamboat, a sawmill, and a large plantation. He was a Democratic member of the Louisiana State Senate (1823-1827). Papers relating to the business and legal career of Isaac Thomas. Several papers document the history of land ownership in Rapides and Catahoula parishes, Louisiana. For further information, see online catalog. Mss. 4634.