1861 - 
 | Joseph Olson 1878- |
| Joseph Olson | |
| B: | Apr 1878 |
| Denmark | |
| Walter Olson 1888- |
| Walter Olson | |
| B: | Mar 1888 |
| Denmark | |
| Charlie Olson 1879- |
| Charlie Olson | |
| B: | Jun 1879 |
| Denmark | |
| Martha Olson 1894- |
| Martha Olson | |
| B: | Nov 1894 |
| Illinois, USA | |
| Adolph Wilhelm Olsen 1891-1955 |
| Adolph Wilhelm Olsen | |
| B: | 24 May 1891 |
| Bornholm, Denmark | |
| D: | 5 Oct 1955 |
| Ellen Dorothy Johnston 1913-2011 |
| Ellen Dorothy Johnston | |
| B: | 19 May 1913 |
| Illinois, USA | |
| M: | Sep 1943 |
| D: | 11 Jan 2011 |
| John Sidney Olsen 1924-1971 |
| John Sidney Olsen | |
| B: | 20 Jun 1924 |
| Chicago, Cook, Illinois, USA | |
| D: | 18 Jul 1971 |
| Harvey, Cook, Illinois, USA | |
 | Lucille Suzanne Altman 1926-2019 |
| Lucille Suzanne Altman | |
| B: | 14 Apr 1926 |
| Center, Starke, Indiana, USA | |
| M: | 23 Apr 1949 |
| Cook County, Illinois, USA | |
| D: | 18 Nov 2019 |
| James Stuart Olsen 1923-2004 |
| James Stuart Olsen | |
| B: | 3 Jan 1923 |
| Chicago, Cook, Illinois, USA | |
| D: | 14 Oct 2004 |
| Elk Grove, Cook, Illinois, USA | |
| Marie Estelle O'Brien 1896-1984 |
| Marie Estelle O'Brien | |
| B: | 29 Oct 1896 |
| Illinois, USA | |
| M: | 22 Dec 1921 |
| Cook County, Illinois, USA | |
| D: | 22 Jul 1984 |
| Cook County, Illinois, USA | |
| Sena olson 1861- |
| Sena olson | |
| B: | Apr 1861 |
| Denmark | |
| Nils P Olson 1844- |
| Nils P Olson | |
| B: | Jan 1844 |
| Denmark | |
| M: | 1895 |
We make every effort to document our research. There is a lot of information that I do not have, and I know there are mistakes in this tree. My feelings will not be hurt if you give me corrections or additional information, especially if you can provide sources for the information.
