Elizabeth, maiden name could have been Menson, was first married to an "Olson." 
According to her great-grandson, Curtis Wayne Olson, here is part of her story:
She came to the United States with her first husband, ______?____ Olson, from Norway around in 1869.They settled in Grundy Co, Wilmington District, Illinois and she had a few (exact # unknown) children by him. He worked in the local coal mines, and was injured and died from the injuries sustained in the mines. She remarried a Seiverson and had more children. She herself relayed this story to Curtis when he was a boy.
Progression of generations from my family to her:
Curtis W. Olson>Lee T. Olson>Nels Olson> _______Olson (Elizabeth's first husband)