• Peter traveled with his family, as indicated by the Atwood company roster published in Deseret News.

Miner G. Atwood Company (1865)

• Age at Departure: 26
• Head of Household

Sources

• "Anderson, James P., b. 1853," Andrew Jenson collection, circa 1841-1942.
• Find a Grave (Website)
• Holmgren, Per Olof, Diary, 1864 Nov.-1865 Sept., 9.
• "Immigration Lists," Deseret News, 20 September 1865, 402-403.
• Nielson, Peter Anton, Autobiographical sketch, [1-2], in Utah Pioneer Biographies, compiled by Yalecrest Camp, Daughters of the Utah Pioneers.
• Peter A. Nielsen reminiscence, undated, 1-23.
• Sweden, Baptisms, 1611-1920.
• "The Indian Attack Near Laramie," Semi-Weekly Telegraph, 5 October 1865, 2.