Originally, you wrote: "Looking for info and obits on Lizzie Thies Dixon Olson and Raford Olson.... Lizzie was born in 1877 in Iowa and died in 1962 in Minnesota."
Since you know she died in 1962 in Minnesota, perhaps you know a more specific death date and more specific death place. More specific information would help in finding an obituary.
I can't find her death record in Minnesota in 1962. I recommend you write to the Hendricks newspaper, the Lincoln County historical society, or another source local to Lincoln County for help with an obit for her and her husband. Even if she died elsewhere, the Hendricks paper might have an obituary.
As posted earlier, Raford Olson died in Deuel County, South Dakota, 1958, but is buried in their earlier home place of Hendricks, Lincoln, Minnesota.