https://sg.news.yahoo.com/companies-...--finance.html
citizenship question should be on the census form. If I were them I'd put them on the short form and use that for appropriation. the long form which has a lot more data could be put out without the citizenship question the following year.
the question in particular has been used in 2 periods, 1789 - 1950's and 1970's to 1990's.