CENSUS DAYS & AGES Submitted by Dick Carter and Nancy White Congress specifies a "census day" and the time allowed to take the census. The census taker was to count the people who lived in each house as of the "census day." which may include anyone who died after census day, or exclude any child born after the census day. Analysis is imperative here. (i.e. the census days for 1820 and 1830 are not exactly 10 years apart. There is a 2 month difference. So, if a person was born between June 1, 1820 and August 7, 1820 the child would appear in 1820 as "under 5" and in 1830 as "under 10" rather than "of 10 and under 16," because he would not yet be 10. CENSUS YEAR CENSUS DAY TIME ALLOWED 1790 2 Aug 1790 = 9 Months 1800 4 Aug 1800 = 9 Months 1810 6 Aug 1810 = 10 Months 1820 7 Aug 1820 = 13 Months 1830 1 June 1830 = 12 Months 1840 1 June 1840 = 18 Months 1850 1 June 1850 = 5 Months 1860 1 June 1860 = 5 Months 1870 1 June 1870 = 5 Months 1880 1 June 1880 = 1 Month 1890 1 June 1890 = 1 Month 1900 1 June 1900 = 1 Month 1910 15 Apr 1910 = 1 Month 1920 1 Jan 1920 = 1 Month