North American Immigrant Letters, Diaries and Oral Histories This link opens in a new windowIncludes 2,162 authors and approximately 100,000 pages of information providing unique and personal views of what it meant to immigrate to the United States and Canada between 1800 and 1950. Composed of contemporaneous letters and diaries, oral histories, interviews, and other personal narratives, the series provides a rich source for scholars in a wide range of disciplines.