After logging in to History Reference Center, enter your search terms and then scroll down to the "Limit your Results" section. It is a good idea to check the Full Text box. In addition, look under "Publication Type" to limit by Primary Source Documents.
Note on the EBSCOhost Advanced Searching video, it is suggested that you do not save to the folder in EBSCOhost (the material will disappear unless you create a separate EBSCOhost account).
Instead, you can save the material to your computer. This will allow you to access it offline and without having to sign in to the databases each time.
Lastly, when saving links make sure to save the permalink, not the link at the top of the browser.