Thompson, Gilbert L. Papers, 1829-1854, undated (bulk 1837-1838). 0.3 linear ft. Location: 32:100, OS:T. Civil engineer and a sugar manufacturer who operated in Opelousas, St. Landry Parish, Louisiana. Contains manuscript records related to civil engineering and sugar manufacturing, personal and professional correspondence, deeds and acts of sale, bills and receipts, inventories, as well as oversized maps of Louisiana. Mss. 3638.