When Daniel Schneck Keller was born on August 15, 1894, in Lancaster, Pennsylvania, his father, William, was 25 and his mother, Anna, was 21. He married Frances Garrett Branson on June 8, 1918, in Rosemont, Pennsylvania. They had one child during their marriage. He enlisted, May 12, 1917, in the first OTC at Fort Niagara, N. Y., received his commission as First Lieutenant on August 15, and was assigned on August 28 to Company C, 316th Infantry, 79th Division, at Camp Meade, Md. For several months he was detailed as Judge Advocate, and was then made Adjutant of the 1st Battalion of the 316th. He sailed for France, July 9, 1918, and was for a time stationed at Percy le Grand. Lieutenant Keller went into action in the Argonne on September 26, and fought continuously until the morning of the 29th. He was directing the advance of his men north of Montfaucon under an intense artillery and machine gun fire, when he was struck in the right lung by shrapnel, and lost consciousness as he was carried to a dressing station. He died almost immediately afterward in the Argonne Forest, France, on September 29, 1918. He is now buried in Meuse-Argonne American Cemetery and Memorial, Romagne-sous-Montfaucon, Departement de la Meuse, Lorraine, France. He also has a cenotaph located in Greenwood Cemetery, Lancaster, Lancaster County, Pennsylvania, USA.