Agnes married Andrew Jackson Clothier in 1851. She left Utah for California with at least three of her children sometime after her youngest was born in 1866. She joined the Reorganized Church in that area. It is possible she traveled to Utah in the same company as her husband before they were married (Howard Egan Company, 1849), but further research is needed to determine this for certain.
Church ordinances performed in he 15th Ward on 10 March 1857 provide a conflicting birth date of 12 December 1833.
A copy of her California Death Certificate appears on FamilySearch in her "Memories" section. It confirms her date of death. At the time of her death, her surname was "Clothier."