458. Column 11. Age at Last Birthday.-Enter the age of the person at his last birthday before 12:01 a.m., April 1, 1940. Thus, a person whose 18th birthday occurred on April 8, 1940, should be reported as 17 years of age because that was his age on his last birthday before April 1, 1940. For persons 1 year old and over, this question calls for the age in completed years at last birthday.

459. Ages of Infants.-The entry in col. 11 for children less than a year old should indicate age in completed months, expressed as twelfths of a year. Ask the following question in each household: "Are there any children in this household who were born on or after April 1, 1939?" For each child born after April 1, 1939, ascertain the actual birth date and determine the proper entry for col. 11 by referring to the table showing ages by birth dates at the foot of the schedule. Thus the age of a child born on May 2, 1939, should be entered as 10/12. Note that a child born after 12:01 a.m., April 1, 1940, is not to be enumerated.

158. Ages of children.-Take particular pains to get the exact ages of children. In the case of a child less than 5 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 old as 1 3/12, a child exactly 3 years old as 3 0/12, a child 3 years and 1 month old as 3 1/12, etc. It 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 1. For instance, a child who is just a year old on the 5th of April 1930, should nevertheless be returned as 11/12, because that is its age in completed months on April 1.

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, you 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.

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.

Ages.?The exact age in figures will be inserted in column 6 whenever the same can be obtained; otherwise, the nearest approximation thereto. Children who, on the 1st day of June, 1880, were less than a year old, will have their age stated by the fractional part of the year, as (one month), 1/12; (three months), 3/12; (nine months), 9/12, etc. In all other cases months will be omitted.

Ages.?The exact age, in figures, will be inserted in column 4, wherever the same can be obtained; otherwise, the nearest approximation thereto. Where the age is a matter of considerable doubt, the assistant marshal may make a note to that effect. Children, who, on the 1st of June, 1870, were less than a year old, will have their age stated by the fractional part of the year, as (one month) 1-12, (three months) 3-12, (nine months) 9-12, etc. In all other cases, months will be omitted. The age taken is the age at last birthday.

7. Ages.-- Under heading 4, entitled "Age," insert in figures what was the specific age of each person at his or her last birth day previous to the 1st day of June, opposite the name of such person. Where the exact age cannot be ascertained insert a number which shall be the nearest approximation thereto. The exact or estimated age of every individual is to be recorded. If the person be a child under one year old, born previous to the 1st day of June, the entry is to be made by the fractional parts of a year, thus: one month, 1/12; two months, 2/12; and so on to eleven months, 11/12. Omit months in all cases where the person is of one year and upwards.

4. Under heading 4, entitled "Age," insert in figures what was the specific age of each person at his or her last birthday previous to the 1st of June, opposite the name of such person. If the exact age in years cannot be ascertained, insert a number which shall be the nearest approximation to it.

The age, either exact or estimated, is to be inserted.

If the person be a child under 1 year old, the entry is to be made by the fractional parts of a year, thus: one month, one-twelfth; two months, two-twelfths; three months, three-twelfths, and so on to eleven months, eleven-twelfths.