Looking forward to this book, but found the historical evidence sufficient.
This piece looks at a newly identified descendant who (to me) resembles both TJ and his daughter Martha.
Sorry it's behind a paywall. The New Yorker doesn't have a gift option.
www.newyorker.com/news/the-led...
newyorker.com
The Lost Descendants of Thomas Jefferson
Scientists have new proof that Thomas Jefferson had children with his enslaved chambermaid Sally Hemings—and that their bloodline endures across the country.