Fort Chadbourne was a fort established by the United States Army on October 28, 1852,[2]: 49  in what is now Coke County, Texas, to protect the western frontier and the Butterfield Overland Mail route.

Chadbourne, who was killed in the Battle of Resaca de la Palma.

[2]: 49  During the early days of the American Civil War, the fort surrendered to the Confederates on February 28, 1861, even before the Confederate shelling of Fort Sumter, South Carolina, but was reoccupied by federal troops from 1865 to 1867.

[2]: 49 Robert Neighbors met with the southern band of Comanches and their chiefs Sanaco, Buffalo Hump, Ketsume, and Yellow Wolf near the fort over 10 days starting on 24 August 1853.

[3]: 113 Neighbors communicated with Seth Eastman, while Seth was a captain at the fort in 1856 and was responsible for the Brazos Indian Reservation, about Comanche depredations in the area.