Browning Buckmark - several models and barrel lengths to choose from. Time tested and proven. What's her intended purpose? Plinker or hunting? Budget would help too.
One more vote for the Buckmark. Much easier to disassemble and take care of.
Buckmarks are hard to beat, but Ruger Mark I, II, or III's are my preference. These are phenomenally accurate & reliable and aren't that difficult to completely strip to the frame once you've done it a couple times.