Backtracking a bit......
The third child born to Sigri Gunnersdatter and Ole Larson, Martha Jordal was married on January 27, 1882 to Ingebrigt Knudtsen at First Lutheran Church* in Lee, Lee County, Illinois.
(It appears Martha was no longer spelling her name as Marta)
The marriage record indicates Martha was 25, however she was born May 13, 1855. She would have been 26 at the time she married. She would turn 27 a few months later. I guess it's not uncommon to shave a year or two off one's life.
*First Lutheran Church records provided by Pastor Steve Dow, Faith Lutheran Church, Rochelle, Illinois.