Many primary-source documents from have been reproduced in books commonly held in research libraries. You can use Library Search to retrieve this material. First, select Books from the drop-down menu at the far right of the search bar.
Try adding keywords such as Correspondence, Diaries, Interviews, Personal Narratives, and Sources along with your research topic to identify printed primary sources.
You can also filter by these terms in the Genre facet to the left after you search.