Margareth Ann Peterson
Daughter of Jens T. and Karen Troelsen Peterson. On the 1855 manifest of the ship James Nesmith she is listed as "Ane Margrete Petersen" and on the 1860 Utah census she is "Anna M. Peterson."
She is not listed on the company roster. It is the assumption that she traveled with her family due to her age.
Her birth and death dates are confirmed by her death certificate, which shows her name as "Margret Ann Anderson." FamilySearch shows her as "Ane Margrethe Peterson."