Archives contain primary sources such as letters, records, and other documents, organized into collections, that can be navigated by finding aids. You may need to first figure out which archive may have collections relevant to your search.
Remember when searching you often need to use the language of the time, not modern terms.
Current and historical coverage of major U.S. newspapers.
Comprehensive source for local, regional and national newspapers in the United States, plus some international sources. Strong source for legal, company (including private), and country research.
Digital library of academic journals, books, and primary sources.