The talking heads on the news are spouting total BS about the census forms after 1950 regarding citizenship questions. The links below are the actual forms from the Census Bureau. Each of the long forms EXCEPT 1960 asks questions about citizenship. The 2010 census only used a short form. None of the short forms asked about citizenship (could only find 1980, 2000, and 2010).
Questionnaire background info: https:// www.census.gov/history/www/through_the_decades/questionnaires/
1960 long form: https:// www.census.gov/history/pdf/1960censusquestionnaire-2.pdf
1970 long form: https:// www.census.gov/history/pdf/1970_questionnaire.pdf
1980 long form: https:// www.census.gov/history/pdf/1980_long_questionnaire.pdf
1980 short form: https:// www.census.gov/history/pdf/1980_short_questionnaire.pdf
1990 long form: https:// www.census.gov/history/pdf/1990_questionnaire.pdf
2000 long form: https:// www.census.gov/dmd/www/pdf/d02p.pdf
2000 short form: https:// www.census.gov/dmd/www/pdf/d61a.pdf
2010 short form: https:// www.census.gov/2010census/about/interactive-form.php