I glanced through it and attached it to James Leggett her father and James Leggett her brother. It's hard to tell because the material's not well organized and I cannot read cursive well, at all. A guardianship happened. Based upon dating of some of the material and persons receiving support, it may more likely be Sarah's brother, James' will.
If the FamilySearch family constellation is correct, Sarah's brother married an Elizabeth Bentley. Sarah's father, James, (again, presumptively) married Martha Tomlinson.