- Identify individual members of the family
- Provide clues to confirm I have the right person/family unit as you search each census
- Provide clues as to relationship in the family
- Provide clues if I have the right female when surnames change through marriage
- Provide clues when people use nicknames and other name variations from one census to the next
I have prepared a birth year reference chart for each census to help you identify an estimated birth year for each ancestor. This article will focus on the 1900 U.S. Federal Population Census.
Learn more about information about age found in the census:
1900 U.S. Census birth year reference chart
In Column 8 of the 1900 US Population Census, learn the age of each member of the household. The following chart will provide the approximate corresponding birth year for the age provided.
Age calculated as of June 1, 1900.
|Age||Birth Year||Age||Birth Year||Age||Birth Year|
Census taker instructions for age on 1900 Census
The following are the exact instructions given to census taker (enumerator):
131. Column 8. Age at last birthday.-The object of this question is to get the age of each persons in completed years, or in the case of a child under one year the age in completed months.
132. For each person of one year of age or over, enter the age at last birthday in whole years, omitting months and days. for children who, on the first day of June, 1900, were less than one year of age, enter the age in months, or twelfths of a year, thus: 3/12, 7/12, 8/12. For a child less than one month old, enter the age as follows: 0/12.
133. Endeavor to ascertain in each case the month and year of birth called for in column 7, but where this is impossible get as nearly as possible the exact years of age. An answer given in round numbers, such as “about 30,” “about 45,” is likely to be wrong. In such cases endeavor to get the exact age.