From the History of Dunn County, Comp. by F. Curtiss-Wedge, et al, Minneapolis, MN: H.C. Cooper, Jr. & Co., 1925, p. 878-879

Peter Nelson, an active and successful farmer, operating 220 acres of land in the town of Rock Creek, was born near Trondhjem, Norway, Oct. 30, 1861, son of Peder and Margretha (Haas) Nelson. The parents were natives of the same land, the father born in 1824 and the mother in 1831.  In 1869 they emigrated to the United States and to Dunn County, settling in Section 7, town of Rock Creek, where a brother of Mrs. Nelson, Martinus Olson, had two years before bought 40 acres of raw land and built a good frame house on it. He sold this piece of property to Mr. Nelson, who at once began to clear and develop it, erecting barns and other buildings from time to time as he increased in prosperity. He also bought an adjoining tract of 80 acres in Section 18, and continued to farm the place until 1893, when he sold it to his son Peter, his death occurring in the same year. His wife survived him many years, dying in 1911.

They had six children: Nora, Olena, Peter, Nels J., Martinus and Nora (second). The first child, Nora (first), met her death by accident at the age of 16 years, being killed at Old Meridean when the boiler in the shingle mill exploded. Olena, is now Mrs. Oluf Fossum of Meridean village; Nels J. is in Portland, ore., Martinus in Superior, Wis., and Nora (second) is deceased.

Peter Nelson grew up on his parents' farm, attending rural school and, when old enough, helping his father to develop the home farm. During 11 winters also he worked as a logger in the woods, thus becoming familiar with more than one phase of pioneer life. This work made him strong and hardy and able to endure privation, and when in 1893, at the age of 33 years, he bought the home farm of 120 acres, he was well qualified to carve out his own fortunes. He has enlarged and improved the farm, having bought 100 acres more land, remodeled the residence and erected a garage and other out-buildings. He gives his chief attention to dairy farming, have a herd of Red Durham cattle, with a purebred sire; he has also a good pen Poland-China hogs. Mr. Nelson is one of the prominent men of his town, having formerly served seven terms on the town board and eight years as a member of School District No. 4. He is a stockholder in the Meridean Cooperative Creamery; the Meridean State Bank, and the Rock Falls and Meridean Telephone Co. In religion he is a Lutheran.

Note: A photo of the family is found on p. 878 in the book.

Addendum:

According to Digitalarkivet, Peter Nelson emigrated with his parents and siblings from Trondheim on April 15, 1869 to LaCrosse, Wis. Names used at emigration were: Peder Nils. Indgul (his father), Margrethe Indgul (mother) and their children: Nora, Oline, Peter, Petra and Pernille - all with the surname Indgul.

In the 1865 Norwegian census, the family is listed on the Indgul lille farm in Inderøy with the four oldest children.

http://www.rhd.uit.no/folketellinger/ftliste.aspx?ft=1865&knr=1729&kenr=0006&bnr=0057&lnr=000