Les B: I don't know much about her career but I believe the following: She has several records, some still available. I most associate her with the Cisco Houston era since they were SOs for a while. She continued on but likely mostly in the southwest.

A rave from AMG: http://www.allmusic.com/cg/amg.dll:

Katie Lee is a real cowgirl. When she isn't singing by the campfire or in concert, she is running a ranch or guiding raft trips down the Colorado. Many years ago Katie was the darling of the New York crowd, singing outlandishly funny, and often bawdy uptown folk songs. Today she sings outlandishly bawdy, and often funny songs about the old West. She is so beautiful and has such a youthful approach to her performing -- and to life, that it is hard to believe it is the same Katie Lee on her earlier recordings. She is a gem! -- Don Stevens