- 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 1910 U.S. Federal Population Census.
Learn more about information about age found in the census:
1910 U.S. Census birth year reference chart
In Column 7 of the 1910 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 April 15, 1910.
|Age||Birth Year||Age||Birth Year||Age||Birth Year|
Census taker instructions for age on 1910 Census
The following are the exact instructions given to census taker (enumerator):
110. Column 7. Age at last birthday.-This question calls for the age in completed years at last birthday. Remember, however, that the age question, like all other questions on the schedule, relates to April 15, 1910. Thus a person whose exact age on April 15, the census day, is 17 years, 11 months, and 25 days should be returned simply as 17, because that is his age at last birthday prior to April 15, although at the time of your visit he may have completed 18 years.
111. Age in round numbers.-In many cases persons will report the age in round numbers, like 30 or 45, or “about 30” or “about 45,” when that is not the exact age. Therefore, when an age ending in 0 or 5 is reported, your should ascertain whether that is the exact age. If, however, it is impossible to get the exact age, enter the approximate age rather than return the age as unknown.
112. Ages of children.-Take particular pains to get the exact ages of children. In the case of a child not 2 years old, the age should be given in completed months, expressed as twelfths of a year. Thus the age of a child 3 months old should be entered as 3/12, a child 7 months old as 7/12, a child 1 year and 3 months as 1 3/12, etc. If a child is not yet a month old, enter the age as 0/12. But note again that this question should be answered with reference to April 15. For instance, a child who is just a year old on the 17th of April, 1910, should nevertheless be returned as 11/12, because that is the age in completed months on April 15.