Gadaden, James

(1788-1858), served in the War of 1812, was aidede-camp to General Jackson in the subjugation of the Seminole Indians, and constructed works for the defense of the Gulf. He was appointed Minister to Mexico in 1853 by President Pierce, and negotiated the Gadsden Treaty, which secured the purchase of the southern portion of Arizona and New Mexico. ‘ Gadsden Treaty was a treaty negotiated with Mexico in 1853 by James Gadaden. By this treaty the United States secured 45,000 square miles of land in what is now Arizona and New Mexico. The United States paid Mexico $10,000,000, but received a considerably larger amount from Mexico for Indian depredation claims.