Isaac and Eliza sailed to America in 1849 on the ship Buena Vista.
Eliza's birth and death dates are confirmed by her obituary and the inscription on her gravestone, which shows her name as "Eliza M. Frost."
Her given name is "Elizabeth" in the Company Journal.
She was rebaptized in Salt Lake City on 27 December 1850. The Salt Lake Stake Record of Members shows her name as "Elizabeth," and her birth date as 15 June 1825.
The inscription on her gravestone shows her given name as "Eliza."