If you know a person's age on a particular year, you can
use the following formula to determine his or her date of birth:
-
Take the known year and subtract the age
-
Take the resulting year and subtract one year
-
Date of birth will always be one of the two resulting years
-
Consult the LCRI for AACR2 Appendix C7 to determine the correct form
for the alternative date
Example 1: 1862 minus 83 = 1779 | 1779 minus 1 = 1778
| Birthdate = 1778 or 1779
010: : |a nr 00024598
040: : |a CtY-BR |b eng |c CtY-BR
100:1 : |a Burgess, William, |d 1778 or 9-1862
670/1: : |a Two sermons, preached in the parish church of Kirby-Le-Soken,
Essex ... 1834: |b t.p. (Rev. William Burgess, B.D., vicar of the parish)
670/2: : |a Venn, J.A. Alumni Cantabrigienses |b (Burgess, William;
d. 29 Apr. 1862, aged 83, Thorpe, England; vicar)
Example 2: 1838 minus 19 = 1819 | 1819 minus 1
= 1818 | Birthdate = 1818 or 1819
010: : |a nr 00026243
040: : |a CtY-BR |b eng |c CtY-BR
100:1 : |a Bittleston, Henry,
|d b. 1818 or 19
670/1: : |a Two letters to an Anglican clergyman of the High
Church party: |b t.p. (Henry Bittleston, M.A., of S. John's College, Oxford,
late curate of Margaret Chapel)
670/2: : |a Foster, J. Alumni Oxonienses |b (Bittleston, Henry;
matric. 18 Jun. 1838 aged 19)
NACO Records for Rare Materials
|
