Can you tell me what the abbreviation "NS" might mean on the 1920 U.S. census for place of birth? Might it mean "not stated"? (I do not think it means Nova Scotia.)
In column 19 of the 1920 census for a person's place of birth, the census enumerator wrote "NS" for many of the people on the pages for Ward 4A of Butte, Montana. Both FamilySearch and Ancestry.com have indexed NS to mean Nova Scotia, but the person I'm researching -- surname Grant on line 51 of sheet 4B -- was born in Massachusetts, not Nova Scotia. The page I'm looking at is https://www.familysearch.org/ark:/61903/1:1:M8QQ-TP3 at FamilySearch and https://www.ancestry.com/imageviewer/collections/6061/images/4313244-00293 at Ancestry.
Considering the number of people residing at 132 West Granite Street in Butte whose relationship to head of the family is "lodger", I think this residence might be an apartment building. And based on the prevalence of "unknown" for age and marital status and "US" as parents' place of birth, my guess as that many of the residents were absent when the enumerator knocked on their door; hence the placeholder "NS".
I've checked the 1920 Census Instructions to Enumerators at https://www.census.gov/programs-surveys/decennial-census/technical-documentation/questionnaires/1920/1920-instructions.html and didn't see "NS" mentioned as an option for a person's nativity.
Thanks,
Joy