Jennifer,
Do you have Louis's Marriage
Records? Do you know why one brother's surname was
OLSON and the other
VIGOREN? Have you checked the Census to find where Louis's parents were born? Do you have his Death Certificate?
The Birth Certificates of his children might provide useful infomation about his past. Don't neglect to get a Birth and Death Certificate if there were children that died young.
Try searching for
VIGOREN Family at
http://www.Google.com or any other good search engine.
That should get you started. Let us know what you learn:-)
Rel@ively,
Patrice