ChrRaces column 3 is RaceID I guess.
that goes:
1 = human
2 = Orc
3 = Dwarf
4 = Nelf
5 = Undead
6 = Tauren
then, it goes weird...
115 for Gnome.
116 for Troll.
I'm assuming because both of these came in one of the WoW patch files (they came later, presumably)
but "115" isn't entirely useful, it doesn't really help out here.
I'd assume the next logical step for gnome would be "7".
So I'll try "7" (of gender male) and see if anything actually changes.
[edit]
didn't make any difference to facial hair.