Marriage certificates and divorce decrees
Copies of certificates of marriage are available from the county that issued the marriage license, and divorce decrees are available from the county that granted the divorce.
For ordering and fee information, please contact the local registrar in the county where the marriage license was issued or the divorce granted.http://www.health.state.mn.us/divs/chs/osr/registrars.html
The paper in Dawson has no record of your Mary.
If you need a "Statement of No Marriage" or a marriage license application, contact the local registrar in the county where you live.