Found in 2 comments on Hacker News
tomohawk · 2018-06-17 · Original thread
This man was a slave in the US in the 20th century. Amazing story.

https://www.amazon.com/Emancipation-Robert-Powerful-Twentiet...

tomohawk · 2018-05-12 · Original thread
This is the account of a man who was a slave in the US decades after the Civil War:

https://www.amazon.com/Emancipation-Robert-Powerful-Twentiet...

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