CAMP MERRILL. Camp Merrill, on a site formerly known as Camp Casa Blanca on the south side of the Nueces River in northeastern Jim Wells County, was established in 1852. The camp may have been a subpost of Fort Merrill; both installations were named for Hamilton W. Merrill. The town of Casa Blanca later developed on the site.
William Curry Holden, "Frontier Defense in Texas during the Civil War," West Texas Historical Association Year Book 4 (1928).