Ezra A . Carman Ezra Ayers Carman ( February 27 , 1834 – December 25 , 1909 ) was an officer in the Union Army during the American Civil War , commanding a New Jersey infantry regiment and ( occasionally ) a brigade . Early life . Carman was born near Oak Tree , New Jersey , oldest child of Melancthon F . Carman and Ann Maria Ayers . He was educated at the Kentucky Military Institute and the University of Nashville and became a merchant . Civil War . At the outbreak of the Civil War Carman joined the Army at Newark , New Jersey , and was commissioned lieutenant colonel of the 7th New Jersey Volunteer Infantry on September 19 , 1861 . In that role he was wounded in the right arm during the Battle of Williamsburg on May 5 , 1862 . After recovering , Carman was appointed a colonel on July 8 of that year . At that rank , he organized and led the 13th New Jersey Volunteer Infantry . He led his regiment in the brigade of Brig . Gen . George H . Gordon in Brig . Gen . Alpheus S . Williams ' s 1st Division of the XII Corps at the Battle of Antietam . Carman next saw action in Brig . Gen . Thomas Ruger ' s brigade of the 1st division of the XII Corps . He fought at the Battle of Chancellorsville and the Battle of Gettysburg . In the latter action , he served on the right flank of the Army of the Potomac , except when Williams led the division , temporarily commanded by Ruger , to the left flank of the army on July 2 , 1863 . Later that month , Carman led a temporary brigade of three regiments sent to help quell the New York Draft Riots . Carman went West with the XII Corps to the relief of the Army of the Cumberland , besieged at Chattanooga , late in 1863 . His regiment was transferred to the newly organized XX Corps under Maj . Gen . Joseph Hooker , serving in the 1st Division under Williams . Carman served in the Atlanta Campaign , seeing action in several battles . He led a brigade of the 1st Division during Maj . Gen . William T . Sherman ' s March to the Sea . In this period the XX Corps became a part of Maj . Gen . Henry W . Slocum ' s Army of Georgia . After Savannah , Georgia , fell to Sherman ' s command , Carman was ordered to Nashville on " special duty . " Whether the failure of XX Corps , especially of Carman ' s brigade , to prevent William J . Hardee ' s escape from Savannah led to this transfer is open to question . His advance had been stopped by Confederate cavalry under Maj . Gen . Joseph Wheeler near Izard ' s Mill , and Carman had not renewed the attack . Carman was mustered out of volunteer service on March 13 , 1865 , having received the Brevet rank of brigadier general on March 13 of that year . Post - war . After the war , Carman was a civil servant , serving as chief clerk of the United States Department of Agriculture in the years 1877 through 1885 . He served as the historical expert for the Board created Antietam National Battlefield and later went on to assume the office of superintendent of Chickamauga - Chattanooga National Battlefield . Carman died in Washington , D . C . He is buried at the Arlington National Cemetery . Carman was survived by his second wife , Ada Salmon Carman ( d . 1916 ) and four of their children . A son by his first marriage and one by his second predeceased . Carman ' s maps appear in " Atlas of the battlefield of Antietam " , edited by George W . Davis and Charles H . Ourand . Carman also wrote a study of the Maryland Campaign , which was published recently : " The Maryland Campaign of September 1862 : Ezra A . Carman ' s Definitive Study of the Union and Confederate Armies at Antietam " , edited by Joseph Pierro ( Routledge , 2008 , ISBN 0 - 415 - 95628 - 5 ) . He also was an author of D . E . Salmon , Ezra Ayers Carman , Hubert A . Heath , and John Minto , " Special Report on the History and Present Condition of the Sheep Industry of the United States " , published in 1892 . Another role was that of a genealogist for the " Carman Association . " His papers can be found at the New Jersey Historical Society . , the New York Public Library , and the National Archives .