If you’re a blogger, educator, or student who is interested in using public domain images to avoid copyright infringement, you may find this link useful. The U.S. archives has thousands of copyright-free images catalogued on Flickr.
Below is an image pulled from the National Archives Flickr collection that includes some historical context.
Original Caption: Starting in business early. Selling vegetables in the market. Boston, Mass, October 1909
U.S. National Archives’ Local Identifier: 102-LH-942
Photographer: Hine, Lewis
National Child Labor Committee
Persistent URL: research.archives.gov/description/523224