NYTs: “Tribes to Confront Bias Against Descendants of Enslaved People.”

Underscore: “Race and Tribal Sovereignty Clash in Congressional Dispute Over Enrollment.”

AP: “Black Freedmen struggle for recognition as tribal citizens.”

Choctaw Nation: “An Open Letter From Chief Gary Batton.“

NPR: “Choctaw Nation Taking First Steps To Grant Citizenship To Freedmen.”

Additional materials on the Greenwood massacre.

AP: “‘The foundation of the wealth:’ Why Black Wall Street boomed.“