... After his father died, Richard Johnson inherited Julia Chinn, an octoroon mixed-race woman (seven-eighths European and one-eighth African in ancestry), who was born into slavery around 1790. She had grown up in the Johnson household, where her mother served. Julia Chinn was the daughter of Benjamin Chinn, who was living in Malden, Upper Canada, or London, Canada, and a sister of Daniel Chinn. ...
... Though Chinn was legally Johnson's concubine, he began a long-term relationship with her and treated her as his common-law wife, which was legal in Kentucky at the time. They had two daughters together and she later became manager of his plantation. ...