Peter E Simon (1870 Immigration to the US)

Dear Norway Heritage Members, I am trying to find the prior History and Origin of Peter E. Simon (Norwegian with Norwegian Father and Mother) born Sep. 1849. I have done quiet some research and here are the facts: 1849 - 1885 - What happen in between these years? Exact Name of Peter E Simon? Possibly Edmund? Origin? Parents? 1870 - Immigration to the US (Census 1900, 1910, 1920) and Residence since 1870 of Minnesota. 1880 - Naturalization to the US (Census 1920) 1883 - Estimated Marriage to Matthea "Mattie" Simon (Possibly Tonlson Last Name) (17 Years of Marriage in Census 1900) (Mattie Simon Marriage Year 1883) (Peter, 29 (1878) at Marriage Census 1930) 1884 - Birth of Son Edmund Simon (1885 Census says Edmon Simon) 1885 - Citizen of Winona, Winona, Minnesota (Peter E. Simon with Mattie Simon and Edmon Simon) 1895 - Citizen of St. Olaf, Otter Trail, Minnesota (Peter E. Simons with Mattie Simon and Edmund Simon) 1900 - Citizen of Ashby Village, Pelican Lake Township, Grant County, Minnesota (Peter E. Simon with Mathea Simon) 1900 - 1905 - Estimated Divorce from Matthea "Mattie" Simon 1905 - Citizen of St. Olaf, Otter Trail, Minnesota (P. E. Simon) 1910 - Citizen of St. Olaf, Otter Trail, Minnesota (Peter E. Simon) 1920 - Citizen of St. Olaf, Otter Trail, Minnesota (Pete Simon) 1925 - Citizen of South Dakota (Mattie Simon Spouse's Maiden Name: Tonlson) 1930 - Inmate of Minneapolis (Districts 1-250), Hennepin, Minnesota (Peter E. Simon) 1932, May 30 - Death in Hennepin County, Minnesota (Peter E. Simon) (Cert. Number 1932-MN-019475) Also I would like to know, what causes Peter E. Simon to be an Inmate in 1930 and all his fellow Norwegian Inmates? - Dylan K Simon (Great-Great-Great Grandchild)