I like the new cives your proposing, but I think we should provide them with more back story and have some more of them, so, I made some of my own:
Name: Orsik Copperative
Leader: Minister Jon Store
Socialist, industrious
North European survivors, their vault was equiped with large numbers of construction equipment and technical manuals, making them superior builders once they emerge. Their vault was one of the first to open after the fall, and they have thus learned much about the environment around them. However, because of their early emergance they have less social knowledge, as they had less time to study in, and a higher mutation rate.
Name: The Rolop
Leader: Valdim Puts
Agressive, Survival
These people never made it to the vault. They survived by hiding in various makeshift shelters as they could find them, and simply tried to survive in a harsh world. Once supplies ran out at their current location they banded together and went in search of a new shelter. They found the vaults, and were expecting to be greated with open arms. The inhabitants of the vaults had other plans though, and these encounters would usually end in the vault being stripped of it's value, and it's inhabitants either enslaved or killed.
These are superior survivalists (health bonus, perhaps an XP bonus?), and have extensive knowledge of the land (equivalent to hunting), but their mutation rate is off the charts.