As she states she was born Georgia in most of the census - the 1850 one only shows 1 possible

Name: Margaret Glass
Age: 4
Estimated Birth Year: abt 1846
Birth Place: Georgia
Gender: Female
Home in 1850(City,County,State): Division 59, Meriwether, Georgia

with
Name Age
Wm P Glass 37
Sarah Ann Glass 30
Sarah Glass 10
William Glass 9
Mary Glass 7
Elizabeth Glass 5
Francis Glass 1