An officer noted for integrity. Born in South Carolina. Came to Texas 1847, and engaged in livestock and mercantile business. Spent six years seeking gold in California. Returned to Johnson County, 1859; joined Co. H, Young's regiment, 1861. Served with distinction as Sheriff of Johnson County, 1870-1876. Married Abigail Winchester; they had 12 children. Arnold was the first president, Johnson County Park and Fair Association.