Her name is listed as "Johannah Marie Petersen" on her death certificate. Her birth and death dates are confirmed by her death certificate and the inscription on her gravestone.
The family sailed to America in 1859 on the ship William Tapscott. The family consisted of: father, Lars, mother: Maren, and children: Johanna Marie, Johanne, Maren, Martine and Mauritz. The index to the ship manifest shows Johanna's age as 6, but the actual ship manifest show her as being 13 years of age.
The ship manifest shows their surname as "Mauritzen."