Lapeer County, Michigan, probate files are online at FamilySearch.org and currently can be browsed, but not searched. Because of other (off line) searches, there were a few file numbers to start browsing for, including File #691:
Lapeer County, Michigan, Probate
Rosaltha Farrar (Guardianship)
FamilySearch.org, U.S. Collection, Michigan, Lapeer County, Probate, File #691, Image 747
Rosaltha Farrar was the wife of James Levi More. Her parents were Lord and Rebecca (Perry) Farrar. The document above, dated 27 September 1870, stated that Rosaltha was over the age of 14 and that her father, Lord O. Farrar, late of Oakland County [was] deceased. [Her mother, Rebecca, died in 1863.]
For the guardianship, Philo Gibbs was the principal and Henry Van Kleek and Nelson R. Mills were sureties.