Her name appears on the 1850 Iowa census, taken on 19 September 1850, and her brother John Middleton Dinsdale was born in 1852 in Ogden, Utah. This confirms the family's arrival in Utah in 1851 or 1852. Further research is needed to determine the year of their arrival in Utah and the name of the pioneer company with which they traveled.
By 1863 the family had moved to California, where they remained.
Her death date is confirmed by the inscription on her gravestone in California which shows her name as "Sarah Farnham."