Roll Call identifies over 7,000 men, women and children who were interned in Canada during World War I. The information, drawn from a broad network of internment camps, reveals that the individuals were primarily from the Austro-Hungarian empire and ethnic Ukrainians. The data also includes corresponding P.O.W. numbers, detailed vital statistics, release or deportation dates, physical descriptions, and other important historical facts. This data will be updated as additional information becomes available.