This record doesn't give any ages, as far as I can see, but the couple can be found in the 1900 census, with a birth for the wife/bride in April 1873, matching the age of 7 in the 1880 census: https://www.familysearch.org/ark:/61903/1:1:MMVV-HXC
No the actual birth place for Maria was up in the air between Norway, on the ship or Wisconsin. But the 1880 Census does list her birth place as Wisconsin. So it is good to have another document with her birth place as Wisconsin.
This record doesn't give any ages, as far as I can see, but the couple can be found in the 1900 census, with a birth for the wife/bride in April 1873, matching the age of 7 in the 1880 census: https://www.familysearch.org/ark:/61903/1:1:MMVV-HXC