- the Longbeards also known as the Mountain-Dwarves or Dúrin's folk.The Tribe of Dúrin the Deathless.
- the Firebeards also known as Úri's folk or Barin's folk.The tribe of Úri or Barin the Scarred.
- the Broadbeams also known as Linnar's folk or Dwálin's folk.The tribe of Dwálin the wise or Linnar
- the Ironfists also known as Sindri's folk or Thelor's folk.The tribe of Sindri or Thelor
- the Stiffbeards also known as Thúlin's folk or Vanhä Isä's folk.The tribe of Thúlin or Vanhä Isä.
- the Blacklocks also known as Vigdi's folk or Druin's folk.The Tribe of Druin the Proud or Vigdís .
- the Stonefoots also known as Vár's folk or Malin's Folk.The Tribe of Vár or Malin the Cold.
Outer History and speculations
The names of the seven dwarf-fathers differ in MERP and the Lord of the Rings Role-Playing Game, MERP names them Dúrin the deathless, Thrár the cold, Dwálin, Thélor, Bávor the swift, Drúin the proud and Bárin the scarred while LOTRRPG names them Dúrin, Úri, Linnar, Sindri, Thúlin, Vár and Vigdís.Like dúrinn (sleepy or gate-warden)the names Dválinn (Dawdler), Þrar (stubborn) and Bávorr (grumbler) are old-norse and taken from the Völuspá or other old norse sources as the Þulur while thélor, Drúin and Bárin seem to be fantasy-forms. Úri (smith), Sindri (Sparky), þulinn (Chanter), Varr (careful) and Vigdís (War goddess) follow the example of old norse names from the Eddas (although Varr and Vigdís are female names and thus seem unsuitable for dwarf-fathers) while Linnar is obscure and may also be a fantasy form just like Thélor, Druin and Bárin (Linnar is a modern swedish name that may be derived from the old norse name Lindorm or the finnish boy name Lennar.Since Lindormr actually means "Dragon" or "Serpent" it would be an odd name for a dwarf).
Perhaps Dúrin, Dwálin, Thrar, Bávor, Úri, Sindri, Thulin can be interpreted as the Names of the seven fathers as they were told to ne Northrons while Thelor, Druin, Linnar and Barin (maybe Sindarin) were the outer Names of Sindri, Thrár,Dwálin and Thrár known to the Easterlings.Vár and Vigdís perhaps were powerful Queens, once leaders of their tribes, which legend confused with the fathers Bávor and Thrár.