Be flexible about wording as you're looking for digital archives on your topic. On Google, pair words for your subject with words for primary sources - letters, diaries, pamphlets, news, writings, advertisements, photographs.
The Digital Public Library of America makes millions of materials from libraries, archives, museums, and other cultural institutions across the country available to all in a one-stop discovery experience. It's one of the easiest access points for online primary source materials related to United States history.
Use NARA's catalog to search millions of archival items. To focus on on items that are available for online viewing and downloading, select "Available Online" or "Archival Descriptions with Digital Objects" from your results list.
A collection of digitized books and documents in the public domain (mostly pre-1924 and government publications). Includes both primary and secondary sources.
"The Mountain West Digital Library is a portal to digital resources from universities, colleges, public libraries, museums, archives, and historical societies throughout the Mountain West."
Search within this collection for oral histories (recordings and transcriptions) on the KKK in Mesa County, atomic weapons and development in the area, the civil rights movement, and more.
