Scott Anderson is the publisher of the photo on Geni.
Scott: Anna Larsdatter Østby was only 4 years old when she died, and the woman identified on this picture looks alot older. So is there a misidentificaton here?
Yes, she did and you have a beautiful picture of her on her profile:Anna Petersdatter Østby .
The profile linked to above where you also have inserted an image is not your grandmother, so if it is of your grandmother you should unlink it from Anna Østby and relink it to your grandmother, or simply delete it.
If you need help I can move it over for you.