Nels married Elna Mathilda Nord on 7 Apr 1900 in Minneapolis, Hennepin County, Minnesota, USA. Elna (daughter of Johannes Nord and Ingrid Maria Nelsdotter) was born in 1873 in Sweden; died on 21 Sep 1931 in Fontana, San Bernardino County, California, USA; was buried in Gardena, Los Angeles County, California, USA. [Group Sheet] [Family Chart]

1. Olga Marie Nelson was born on 13 May 1893 in Skrillinge, Fyn, Denmark; died on 15 Nov 1994 in Los Alamitos, Orange County, California, USA; was buried in Cypress, Orange County, California, USA.
2. Walter Nelson was born on 9 Sep 1901 in Minnesota, USA; died on 3 Sep 1961 in Los Angeles County, California, USA; was buried in Cypress, Orange County, California, USA.
3. Roy Harold Nelson was born on 29 Dec 1905 in Minnesota, USA; died on 14 Jan 1994 in Los Angeles County, California, USA; was buried in Gardena, Los Angeles County, California, USA.
4. Evelyn Virginia Nelson