Margreta Ersdotter
Margreta Ersdotter was born December 23, 1816 in Harsjön, Alanäs,
Jämtland, Sweden to
Erik Ersson and Margreta Matsdotter.  As a
young girl her family moved to Grönäs, Ed, Västernorrland, Sweden.  
There she met and married
Olof Nilsson on November 20, 1836.  They
had four children:
  
Cajsa Greta, born 9 Apr 1837
  
Anna Brita, born 24 Jun 1843
  Nils Erik, born Jan 1850
  Olof Oscar, born 14 Sep 1855

Here you can view Margreta in the 1880 census of Sweden, living
nearby her daughter Anna Brita Olsdotter.

Margreta (who often went by "Greta") died on January 21, 1893 in
Ållsjön, Ed, Västernorrland, Sweden.