I don't know if this could be her or not. Mary Livermore born April 1899 in Pocatello, Idaho. Found her in the 1900 census for Box Elder, Utah living with her mother and grandparents, the Canfields, and her siblings, along with aunts and uncles. This was the last time I found her.
What is so strange, Mary Canfield Livermore committed suicide, Raymond Livermore her son committed suicide and his son, Elmer Livermore also committed suicide. So sad.
Do you know anything about St. Mary's orphanage?