They Were Her Property: White Women as Slave Owners in the American South is a nonfiction history book by Stephanie Jones-Rogers.

[2][4] Jones-Rogers uses primary source documents to illustrate the scope and conduct of white women slaveholders, including testimonials of formerly enslaved people archived by the Federal Writers' Project, and bills of sales for enslaved people bought and sold by white women.

In a review for The Washington Post, Elizabeth R. Varon wrote: "In holding slave-owning women to account, Jones-Rogers has provided a brilliant, innovative analysis of American slavery, one that sets a new standard for scholarship on the subject.

"[3] Jeff Forret said in his review for Southwestern Historical Quarterly: "Jones-Rogers offers a bold reinterpretation of the relationship between slavery and slave-owning women in the nineteenth-century South.

The prose in They Were Her Property is strong and clear, containing no shortage of appalling stories of the violence and cruelty endemic to southern slavery.