Naming Patterns
1st son = father's father
2nd son = mother's father
3rd son = father
4th son = father's oldest brother
5th son = father's 2nd oldest brother or mother's oldest brother
1st daughter = mother's mother
2nd daughter = father's mother
3rd daughter = mother
4th daughter = mother's oldest sister
5th daughter = mother's 2nd oldest sister or father's oldest sister
HOW TO FIGURE A BIRTHDATE
REMEMBER THIS NUMBER: 8870
This is not an error: It is the number to remember when you want to find the birthdate of someone when you only have the date of death and age.
How do you figure the birthdate? Suppose the person died May 6, 1889, at the age of 71 years, 7 months, 9 days.
1. Write the year, month, day as: -----------> 18890506
2. Subtract the age at death: ----------------> 710709
3. This gives the figure: ------------------------> 18179797
4. Now subtract 8870: --------------------------> 8870
5. The result is: -----------------------------------> 18170927
Year 1817, 9th month (Sept), 27th day or 27 Sept, 1817
Source: Platte Co, MO Historical/Genealogical Society
Copyright © 2002 - present by Vicky Chambers
This page was last updated Tuesday, 04-Mar-2025 21:59:33 UTC