At Antietam, also, was Clara Barton, founder of the American Red Cross. On this field of desolation, long after the guns had ceased, Miss Barton was still busily rendering care to the wounded and dying. Having arrived early in the day in the northern area of battle, she witnessed the wounded men of Sedgwick’s depleted ranks streaming to the cover of North and East Woods. By midmorning her wagonload of supplies, donated by the citizens of Washington, had arrived. She worked tirelessly with army surgeons at the field hospital on the Joseph Poffenberger farm. Her supply of bandages, linens, anesthetics, and oil lanterns replenished the surgeons’ urgent need of dressings and provided light to carry on through the night. So outstanding were her services on the field of battle that she later received official recognition by the United States Army Medical Corps. Her work here and later would become basic to the establishment of the American Red Cross. [Illustration: _Barn near Keedysville, used as field hospital after the battle._ Courtesy, National Archives.] _Antietam National Battlefield and Cemetery_ The Antietam National Battlefield was established August 30, 1890, to commemorate the significant events of September 17, 1862, and to preserve the important features of the battlefield. Administered by the War Department until 1933, the site was transferred that year to the U.S. Department of the Interior to be administered by the National Park Service. [Illustration: _Clara Barton._ Courtesy, Library of Congress.] [Illustration: _Citizen volunteers assisting the wounded at Antietam._ From wartime sketch by Waud. Courtesy, Library of Congress.] [Illustration: _Maryland Monument._] [Illustration: _Turner’s Gap looking east._] [Illustration: _War Correspondents’ Memorial Arch at Crampton’s Gap._] The Battle of Antietam was fought over an area of 12 square miles. The site today consists of 810 acres containing approximately 8½ miles of tour roads. Located along the battlefield avenues to mark battle positions of infantry, artillery, and cavalry are many monuments, markers, and narrative tablets. Similar markers describe the actions at Turner’s Gap, Harpers Ferry, and Blackford’s Ford. [Illustration: _Lee headquarters marker in the Oak Grove._] Key artillery positions on the field of Antietam are marked by cannon. And 10 large-scale field exhibits at important points on the field indicate troop positions and battle action. The War Correspondents’ Memorial Arch and the 1st New Jersey Regimental Monument are located at Crampton’s Gap, and at Fox’s Gap is the memorial to Maj. Gen. Jesse Reno, who was killed while leading the Federal attack there.