The Drúedain were a tribe or number of clans of Drûghu-origin that had joined the People of Haleth on their wandering westwards into the lands of Beleriand.
Thee Drúedain were considered Edain by the Elves and especially seen as a part of the Halethrim. Some of these Drúedain had even accompanied the remnants of the Edain to the Island of Númenor and had become Númenóreans, even if they largely stayed a tribe on their own. With the rise of the Sea-Kings and later Sauron, however, most of these Drûghic Númenóreans left Númenor, joining colonists and Elendili on the western coasts of Middle-Earth and later retreating to the forests and mountains, eventually adjoining tribes of their old lost kinsmen.
The Drúedain of Drúwaith Iaur, Anfalas and Drúadan Forest were the descendants of these Exiles.
Ghân-buri-Ghân was the Chieftain of the Woses of Drúadan Forest in northern Gondor, properly called Drúedainor Drûgs, during the War of the Ring, Ghân proved to be a forgiving man and a valuable ally. Despite the age-old fear his reclusive people held for the Rohirrim, he agreed to lead the Riders of Rohan through their woodland realm, enabling them to avoid the Orc army that awaited them on the West Road. In gratitude, King Aragorn Elessar of Gondor gave theDrúadan Forest to the Woses forever, promising that they would no longer be hunted by other Men as they had in the past.
Ghân’s father was also named Ghân, as “buri” signifies “son of” in Drûghic. The elder Ghân was presumably also a wise leader.