1940 Census could help genealogical researchers – Baltimore Sun Administrator | February 12, 2012 | Family Tree | No Comments No one could predict that in 1940 the Second World War was destined to become the deadliest conflict in history, they could not foresee how important the data in the census of 1940 could one day become. Information about the lives of U.S. citizens … Tags:1940, Baltimore, census, could, Genealogical, help, Researchers