Church records prove she arrived in Utah in 1852. Three of her sisters traveled on the William Morgan Company, but Sage does not appear on the roster with them. In a history, written by her children, it is stated that after the death of her parents in St. Louis, she joined Evan Greene's family and crossed the plains with them.
On the 1849 passenger list of the ship Buena Vista the surname is spelled "Treharn" and in the 1850 Iowa census it is spelled "Freehern". Death date determined by Utah Burials.