Raquel

 is living on the Nellis Air Force Base. You can usually find her sitting on top of some shipping containers N-NW of the entrance to the base. Additionally, you can find her when you first enter Nellis, provided you survived the Artillery barrage.

Background
After completing Ant Misbehavin', and at a high enough reputation with the Boomers, she will trade any spare missiles you bring her for caps.

Appearances
appears in Fallout: New Vegas.