Fort Graham was a pioneer fort established in 1849 by Brevet Major R.A. Arnold at the site of Jose Maria Village, an Anadaca camp on the western edge of present-day Hill County, Texas. It remained in service until 1853, when settlements had moved further west. It was named after Col. William M. Graham, who died at the Battle of Molina del Rey.

Fort Croghan was the third of the first four forts established by the United States government to protect settlers from hostile Indians along the Texas frontier. From its establishment on March 18, 1849, by Lt. C.H. Taylor until it was abandoned in 1855, Fort Croghan was home to Company C, 8th Infantry, U.S.A. (mounted), and eventually became the headquarters of the Second Dragoon Regiment.