SuperSearch can also be used to find primary sources.
Put your search terms in and, on the results page, use the filters to select content types like video, magazine articles, and government documents:
If your research is about a specific time period, scroll down to filter by time, too:
For example, the Essex County (Mass.) court records and probate records are all available and text searchable on the Internet Archive. Look at the citations in secondary literature to determine what words you need to use to search, like "quarterly courts" for Essex Co. or "New Amsterdam" for New York.
Primary sources from a library in New York spanning American history. Particular strength in the papers of elite white men, but materials include the papers of others as well.
Dates: 1493-1945 CE
An archive of American printed primary sources from ads to maps to music from colonial settlement to the early republic. An emphasis on English-language documents from the latter part of the 18th Century.
Dates: 1639-1800 CE
Full-color, high-resolution images of many pamphlets, fliers, advertisements, and more from the Revolutionary Period through the Spanish-American War.
Dates: 1760-1900 CE
The diaries and letters of over 1300 North American women, mostly white and elite. Common topics include health, relationships, religion, politics, economics, home life, and travel.
Dates: 1600-1950 CE
Documents published in America up to 1819, including books, pamphlets, broadsides, and ephemera, covering topics such as daily life, politics, religion, science, and more.
Dates: 1640-1819 CE
Records on colonial America from the British Archives from initial European settlement through the early republican period.
Dates: 1606-1822 CE
Primary sources from the largest and best collection of materials on Indigenous (Native American) history, including maps, treaties, letters, journals, art, and more.
Dates: 1500-1998 CE
The most comprehensive collection of the primary source records of the Virginia Company of London, which planted English colonial settlements in what is now Virginia beginning in 1607 in Jamestown.
Dates: 1590-1790 CE
Full text of more than 1,000 historical U.S. newspapers. Contains Early American Newspapers, 1690-1922, and African American Newspapers, 1827-1998.
Dates: 1690-1998 CE