Have Photo Lamar Aransas County, Texas 28 08.304' N 96 59.669' W Directions: Start at the intersection of Bois D'Arc Street and Main Street. The marker is on the south side of the intersection. Text: Named for Mirabeau B. Lamar 1798-1859, President of the Republic of Texas 1838-1841. Established in 1838; made a port of entry in 1839. Sacked by Union troops Feb. 11, 1864. Survived until 1914 but never flourished.