The Nelson and Louisa you mention are most certain my great great grandparents on my father's side. They lived in Plainfield and were buried in Deerfield Cemetery where my grandfather, grandmother and both sets of great grandparents are buried. This is in Washara, County, WI. I obtained Morgan and Rachel's information from the Waushara County court house death record for Nelson.
I need more direct information to ensure the connection to Nathan and Olive. My cousin might have additional information. Kathi Barber