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Primary Sources (United States History)

This guide is an introduction to what primary sources are in the field of history, how to use primary sources, how to read and transcribe original documents and links to on-line primary sources by historic topic.

What is the difference between a primary, secondary and tertiary source?

What are Primary Sources Used for in the Field of History?

Historians study and analyze primary sources in order to interpret and write about historical events and issues.  Check out the link below for tips on how to think, analyze and write like a historian.

Evaluating Primary Sources in History

Common Examples

Common Primary and Secondary Sources by Discipline
Discipline Primary Source Examples Secondary Source Examples
History
  • Letters
  • Photographs
  • Diaries
  • History books
  • Journal Articles
  • Documentaries
Art & Literature
  • Novels
  • Paintings
  • Poems
  • Art criticism article
  • Literature criticism article
  • Art history textbook
Communications & Journalism
  • Speeches
  • Investigative Journalism
  • Newspapers & Magazines
  • Journal articles on communication theories
  • Book on Journalism practices
  • Public speaking manual
Political Science
  • Laws
  • Court documents
  • Public opinion surveys
  • Article by a legal scholar
  • American government textbook
  • Encyclopedia of political theory
Science & Social Science
  • Research studies
  • Lab tests
  • Mental Health surveys
  • Reviews of other studies
  • Systematic reviews
  • Textbooks

 

When a Source can be Either

What makes a source primary or secondary depends a lot on the questions you are researching, the context, and the discipline (subject). The same type of source might be primary for one use or discipline and secondary in another.

Documentaries: When studying history, a documentary about the Vietnam War is a secondary source because it brings together many primary sources about the war and makes an argument about them. In contrast, in the field of journalism, a documentary that investigates current political corruption would be a primary source because it involves original investigation.

Newspaper Articles: A newspaper article discussing a speech by the Speaker of the House would typically be a second-hand account of that speech (the primary source) and therefore the article is a secondary source. However, if we want to know how the media portrayed the Speaker of the House, or if the speech was so long ago the newspaper article is the only evidence left, it becomes a primary source. 

Commentary or Criticism: A review of a movie is typically a secondary source commenting on the film itself. However, if you are researching the critical reception of a film that review would become a primary source.