This article is from the Tolkien FAQ, by William D.B. Loos loos@hudce.harvard.edu with numerous contributions by others.
In the _Silmarillion_ account of the making of the Dwarves, only the
Seven Fathers are mentioned. In Letter no. 212 (p 287), however, Tolkien
speaks of thirteen dwarves being initially created: "One, the eldest, alone,
and six more with six mates." Thus, it seems that Durin really did "walk
alone" as Gimli's song said.
 
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