These fascinating portraits show African-American ex-slaves.
The photographs were taken as part of the 'Born in Slavery: Slave Narratives from the Federal Writers' Project, 1936-1938'.
It contains more than 2,300 first-person accounts of slavery and 500 black-and-white photographs of former slaves.
With slavery having been made illegal in the United States in December 1865, the interviews and pictures were taken as part of a U.S. government initiative to document firs-hand experiences of ageing former slaves, many of whom were in their 80s, 90s, and even 100s.