I wanted to mention that the mistake of NS as US in census records happens all the time...most of the time it is a definite error. I have been doing genealogy for abt 10 yrs and I see it all the time.
the one in the 1910 census cannot be your ADELLA as she is single
as is Esthom in the 1910 census...
ESTHOM AND ADELLA ARE STILL IN GEORGIA IN 1920