REMEMBER THIS NUMBER 8870
This is not an error It is the number to remember when you want to find the birth date of someone when you only have the date of death and age.
How do you figure the birth date?
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
5. The result s
18170927
Year 1817, 9th month (Sept), 27th day or 27 Sept, 1817
Source Platte Co, MO Historical/Genealogical Society
