By 1915, a third of the population was born outside the United States. In addition to becoming home to large Irish and Russian populations, Peabody developed a large community of laborers hailing from the Ottoman Empire, mostly Turkish and Kurdish speakers from the region of Harput, now known as Elazığ. The population was situated primarily on Walnut Street, where they filled boarding houses and coffee houses to such an extent that it became known as "Ottoman Street," and, more pejoratively and less accurately, "Peabody's Barbary Coast", as the United States was at war with the Ottoman Empire during World War I. One visitor even noted that signs in town were written in both English and Ottoman Turkish.