In the Margins of Twelve Years a Slave
https://harpers.org/blog/2014/02/in-the-margins-of-twelve-years-a-slave/
Twelve Years a Slave
http://www.gutenberg.org/files/45631/45631-h/45631-h.htm
The Project Gutenberg e-text.
The New York Times’ 1853 Coverage of Solomon Northup, the Hero of “12 Years A Slave"
In the Margins of "Twelve Years a Slave"
https://harpers.org/blog/2014/02/in-the-margins-of-twelve-years-a-slave/
“What’ll Become of Me?” Finding the Real Patsey of 12 Years a Slave
https://www.vanityfair.com/hollywood/2014/03/patsey-12-years-a-slave