Maybe this has been discussed here over the years, but how do you think she got around before Texas? We know she only got an Idaho ID in 1988, then later a TX DL with her new identity. I got to thinking about a bus. If she took a bus from Boise to say Phoenix or perhaps Dallas, i think back then she might have gone over Hoover Dam, in the city of Boulder City, NV. I just checked a modern route on greyhound and it appears it goes to las vegas then crosses the colorado river (lake mead) over the new bridge but use to be the dam heading for flagstaff then south to Phoenix. You know how busses hit every town and crossroad before you get to where you are going. A 10 hr drive takes a day or two.
I think one article says she had her mail forwarded to Dallas from the Boulder City mailbox. Does anyone know what mailbox store she used in Boulder City? I found one that opened in 1976 less than a mile from the current greyhound station. All these years later, not sure all this matters. But just made me wonder.