I don’t know anything about your
Olson or Jorgenson/PPhurgenson but I know the frustration of using the Internet to find data! But here is one place to start to looking. Try
www.FamilySearch.org It’s a site of the LDS (
Mormon) church, and they do a good job. When you click on this site, click on “Family Record Search.” Then scroll down to the map and click on North
America. You will get a list of the collections they have. For your use, the 1900 census is a good place to start. First enter Lars
Olson, with his birth date and his birthplace of Norway. With his name you will get several hits, and pick the one closest to the right birth year. Then click on the tiny handwritten pages, which will enlarge. If you are lucky, it will be the actual census page recording where he lived in 1900, with a family if he had one by that time. Be sure to record all the data, including the town (you may have to go back to page 1 to find it), and the roll and all the data recorded at the top of the page, including the name of the person who took the census (if you can read it). Then do the same for Jorgenson/Phurgenson. If the 1900 census shows them living in
Wisconsin, try it again for 1885 and 1895, and even 1905. You will have to browse those, in the counties the 1900 showed him living in, since they aren’t indexed as the 1900 is. If he’s not in
Wisconsin in 1900, hope that there is an off-year census in the state he’s in. Not many states did that. Other
Wisconsin resources can be found in
http://www.cyndislist.com/wi.htm and more general resources in
http://searches.rootsweb.ancestry.com/ I hope this helps, without being too overwhelming. Doris