Arthur Broadfield Warren was born in Waban, Massachusetts, February 25, 1894, a son of Herbert Langford Warren and Catharine Clark (Reed) Warren. In 1911 he graduated from the Cambridge Latin School and entered Harvard. At his graduation with the Harvard Class of 1915 he received the degree of A.B. magna cum laude. In college he specialized in German, and in order to perfect himself in that language he spent the summer of 1914 in Germany as a special student at the University of Marburg. He returned to Harvard in the autumn after many interesting experiences in Germany during the first few weeks of the war. Government regulation had compelled him to leave the University. In the autumn of 1916 he returned to Harvard to study for a master's degree in Romance Languages. At the same time he was receiving military instruction in the Harvard ROTC, and in May, 1917, he left college to enter the first Plattsburg camp. At the 1917 Commencement the degree of A.M. was awarded to him. At the end of the Plattsburg course he received his commission as a second lieutenant in the infantry, and was assigned to Camp Devens. After a few days there he was ordered, September 10, 1917, to Company H, 167th U. S. Infantry, a regiment of the 42d ("Rainbow") Division. Formerly the 4th Alabama National Guard. The company was in training at Camp Mills, Mineola, Long Island, until November 5, 1917, when it left for Montreal. Arriving there early in the morning of November 6, it embarked on the Ascania, landed in Liverpool, and preceded to Winchester, where it arrived December 1. A week later it embarked at Southampton for Havre, reaching there December 8 and going to Rest Camp Number 2. On December 11 it left the rest camp, in the famous "Hommes 40, Chevaux 8," arriving at St. Blin on the 13th. They left St. Blin the day after Christmas and made a three days' march through a heavy snowstorm to Leffonds. Here the drill was more practical, and within sound of big guns in Alsace the men practiced the maneuvers they were later to use in action. On February 16, 1918, they left Leffonds for a town nearer the lines, getting into the trenches in March. At this stage of his career, while the official interpreter was absent, Warren took his place. His first experience in the trenches was on March 6, 1918, in a quiet part of the Lorraine sector. It was really more in the nature of training than fighting, although some casual- ties resulted from shell fire. Early in April, while acting as officer in charge of the ammunition detail at night and in charge of his platoon during the daytime, Warren fell ill. After a few days of working in spite of his illness he was sent to the hospital at Baccarat where he died on April 15, 1918, of what proved to be an unusually malignant form of scarlet fever.

Information drawn From "Memoirs of the Harvard dead in the war against Germany (Volume 3)"