Some more name sets from Eastern Europe.
48,Ukrainian,0,2,8,990,0,
49,Belorussian,0,2,8,990,0,
I would use about 5% Belorussian and 20% Russian with the Ukrainian set, and about 20% Ukrainian and 20% Russian with the Belarus set, especially since the Belarus set is a bit small.
first_names_Ukraine.txt
first_names_Belarus.txt
names_Belarus.txt
Ukrainian surnames names on next post..