In search of the Odegaardens!!!!

Looking for any information on the following: Ole Olsen Odegaarden We believe he came to Wisconsin in 1884 His mother-Else Paulsdatter Farm he lived on: Steenstuen Farm, Vaga-Oppland his children: Julia (Odegaarden) Rousch Ella (Odegaarden) Dibbs Melida Endicott Nelson (1895-1984) Oscar Olaf Odegaarden (1897-1942) Roberta Staff (1911-1992) I know that Roberta Staff had researched the Odegaarden Geneology, but all was destroyed after her death. I am trying to pick up the pieces and put it all back together. if you have any information that could help...it would be greatly appreciated