America is a nation of immigrants. Through naturalization records, genealogists, historians, and other scholars trace the immigration stores of individuals and groups that traveled from afar to call themselves Americans. They Became Americans provides an accurate, readable, and interesting historical framework for the citizenship process. It suggests ways of finding naturalization records and discusses the weaknesses and strengths of the different types of records. If naturalization records are not to be found, They Became Americans points to a variety of alternative sources for finding immigrant origins.