Choose historically appropriate keywords. For example, use "Great War" instead of "World War I" to locate documents discussing the war during and just after it occurred. You may also consider different terms that might have been used to describe the same event from opposing sides or perspectives. Searching for the names of particular people or places may also be effective.
Think about what types of primary sources might have been produced that would be relevant to your topic; think also about which persons or organizations might have produced materials. Some possible types of sources:
| Books | Photographs and images |
| Magazine and newspaper articles | Cartoons and advertisements |
| Diaries and journals | Movies, videos, and DVDs |
| Memoirs and autobiographies | Audio recordings |
| Interviews | Public opinion polls |
| Letters | Fiction |
| Speeches | Research data and statistics |
| Documents produced by organizations | Documents produced by government agencies, including congressional hearings and census records |
To locate potential primary sources in the library's online catalog, look for subject headings that contain terms such as diaries, letters, correspondence, autobiography, interviews, or personal narratives following the main heading.
To see more primary sources related to American History, visit the Primary Sources at ZSR guide.
COLONIAL, REVOLUTIONARY, AND EARLY REPUBLIC DOCUMENTS
HISTORICAL PERIODICALS
HISTORICAL BOOKS & PAMPHLETS
COLLECTIONS OF PERSONAL PAPERS
Additional collections may be available through the Library of Congress or through other online or print archives. For more, review the Library of Congress guide for finding Presidential Papers and Documents.
To find published primary source collections, as well as some materials available in our digital primary source collections, use Primo. If you have the title of a published primary source, try searching for it through ZSR Library. If you can't find the information you need in ZSR Library's holdings in Primo, you can check "Include Items with No Full Text" in the facets on the left side to expand your search beyond ZSR. (Note: This option is only available in the Everything search, not the Library Catalog search.)

To locate potential primary sources, from the search box, choose "Library Catalog" and use the Advanced Search option to search in the Genre field for items that contain the generic term, "Sources", or more specific terms such as diaries, letters, correspondence, autobiography, interviews, or personal narratives. (Note: This option is only available in the Library Catalog search, not the Everything search.)

Find a relevant record, and review the related subject headings to further refine your search.

You can also try searching WorldCat, which includes holdings information from other libraries. You can request these books through Interlibrary Loan if you are on campus. (Remember that it may take 1-2 weeks or more for items to arrive through Interlibrary Loan, so plan ahead!) Note that libraries are not allowed to loan ebooks through Interlibrary Loan. In cases where you are unable to access the physical book, but just need a portion of the book, you may be able to request a chapter or two be scanned and emailed to you, rather than a physical copy. You can also check for full text ebooks through resources such as the Internet Archive.