Definitions

What makes a source primary?

In theory, primary sources are original documents and objects which were created at the time being studied. Typical examples include letters, diaries, photos, newspaper articles, eyewitness accounts, autobiographies, government reports, paintings, maps, etc. In actuality, it can be more complicated and can depend on format and the topic/time period and discipline.

Useful Tips

Browse footnotes and bibliographies of books, encyclopedias, and articles for information about primary sources.

Archival Primary Sources (2)

Kroch Rare and Manuscript Collections

The Division of Rare and Manuscript Collections (RMC) is Cornell's principal repository of rare books, manuscripts, and archival materials in history, literature, music, the arts, science, natural history, and technology). These RMC collections can be searched for using the Library Catalog. Some collections have finding aids. Visit or email RMC to discuss your research interests with archivists who typically have extensive familiarity with the collections.

Published guides to collections, archives, and libraries help identify and locate manuscripts. Print and online examples are listed below.

Use the Library Catalog to identify archival collections at Cornell RMC.
Use Worldcat or ArchiveGrid to identify archival materials or guides to archives Cornell does not own.


A technique for browsing before you go to RMC:

  1. Search the Library Catalog with a term or two related to your topic.
  2. Select either the "Manuscript/Archive" format type or set the "Kroch Library Rare and Manuscripts" as the library location using the "Limit your Results" facets which appear on the left of your search results. 

Online Collections

Additional Primary Source Online Collections