The National Archives
Copyright free images of photos, and of other primary sources
AP Images
You will need the EBSCOhost password to access. Locate the Google Drive icon and click if you need it.
Click on images to go to the sites
To find images using Google do the following:
In the search box type in the image you are looking to find.
Then Select Images.
Next, look for "Tools" & click.
Find and select "Usage Rights" and from the drop down menu select "Creative Commons licenses". Once you have done that, the images that remain can be used in your projects.
You still must cite them. Nothing is really free :)