Re: Finland to MA

It depends on the date (if she married a US citizen before 1922 she would have automatically become a citizen, no record there). I don't think she would have gotten citizenship via her aunt and uncle (unless they officially adopted her);

Good overview:
http://www.archives.gov/publications/prologue/1998/summer/women-and-naturalization-1.htmlhttp://www.archives.gov/publications/prologue/1998/summer/women-and-naturalization-1.html