[1][2][5] In 1872, at the age of seventeen, Haley was plying her trade in the cattle town of Ellsworth, Kansas, while Billy worked the gambling halls.
[1][5] In the summer of 1873, Billy Thompson, in a state of drunkenness, shot and killed Ellsworth town sheriff Chauncey Whitney.
The couple wound up in Dodge City, where Billy gambled and Mary worked as a dancer and prostitute.
[1][2][6] After Dodge City, the Thompsons drifted to Colorado, but by 1876, they had moved to Sweetwater, Texas, which became their permanent home.
Although most of her sons had turned to crime and her daughters followed her into prostitution, she spent her elderly years living in Palmdale, California, among her various children's homes.
On April 13, 1953, Libby Thompson died at the Sunbeam Rest Home in Los Angeles, California, at the age of 97.