scientific mission for the Smithsonian Institution in northern Mexico. There, he discovered the species that are known as Couch's kingbird and Couch's spadefoot toad. Upon his return to the United States in 1854, Couch was ordered to Washington, D.C., on detached service. Later that year he resumed garrison duty in Fort Independence at Castle Island along Boston Harbor, Massachusetts. Also in 1854 he was stationed at Fort Leavenworth, Kansas, and would remain there into the following year. On April 30, 1855, Couch resigned his commission in the U.S. Army. From 1855 to 1857 he was a merchant in New York City. He then moved to Taunton, Massachusetts, and worked as a copper fabricator in the company owned by his wife's family. Couch was still working in Taunton when the American Civil War began in 1861. American Civil War service Early service At the outbreak of the Civil War, Couch was appointed commander of the 7th Massachusetts Infantry on June 15, 1861, with the rank of colonel in the Union Army. That August he was promoted to brigadier general with an effective date back to May 17. He was given brigade command in the Military Division then Army of the Potomac that fall, and Couch was given divisional command in the VI Corps in the following spring. From July 1861 to March 1862 he helped train and then maintain the defenses of Washington, D.C. He participated in the Peninsula Campaign, fighting in the Siege of Yorktown on April 5–May 4 and the Battle of Williamsburg the following day. Seven Pines Couch led his division during the Battle of Seven Pines on May 31 and June 1, 1862. In this engagement his corps commander, Brig. Gen. Erasmus D. Keyes, ordered Couch's division and that of Brig. Gen. Silas Casey forward of the Union defensive line, Couch's men right behind those of Casey. This placed the IV Corps in an isolated position, vulnerable to attack on three sides; however poorly coordinated Confederate movements allowed Couch and Casey to partially prepare entrenchments against the impending assault. As the fighting continued throughout May 31 both Couch and Casey were slowly driven back, with their right flank units in the most peril. At this time Couch counterattacked with his old 7th Massachusetts Infantry and the 62nd New York Infantry in an attempt to bolster that side, however he did not succeed and was forced back, as