Edward Austin Warren Jr. was born in Waltham, Massachusetts, on July 4, 1899, as the elder of two sons by Edward Austin Warren, city alderman of Waltham and expert butcher, and Nellie Myra Anderson Warren. He attended public grammar school in Ashburnham, Massachusetts, and briefly attended Waltham High School, where he received instruction in Latin and studied Esperanto independently. At the age of thirteen, Warren and his family relocated to a lonely farm in Stow, Massachusetts. He attended Hale High School and received additional training in Latin; he would later consider this instruction responsible for his classical major at college.