You can find a variety of primary sources using the MSU Library Catalog. When searching the catalog, use the word AND to connect multiple search terms, and use OR to search for multiple terms with similar meanings (for example, infantry OR army). In addition, remember to put phrases, such as "personal narratives," in quotes in order to search for this complete phrase.
In addition to using search terms that correspond with your research topic, add the following terms to your search in order to find specific types of primary sources:
For example, to find primary sources on civil war soldiers, you can search:
"united states" AND "civil war" AND soldiers AND (letters or "personal narratives")
You can also limit your search by date on the Advanced Catalog Search page: