The following formula is the courtesy of the Hacker's Creek Pioneer Descendants, WV. It was forwarded to me by RESSER409@aol.com. Formula of 8870: Determines date of ancestor's birth when one knows only the Death Date and age at Death: Death date = "A" Age at Death = "B" Constant Factor = "C" = 8870 Birth Date = "D" Express date as full year, month in 2 digits and date in two digits. Then the formula is: (A-B) - C = D or (A-B) - 8870 = D Example: Died 6 May 1889 18890506 at age 71 years, 7 months & 9 days. -710709 18179797 Formula -8870 18170927 Therefore ancestor born 1817, 9th month, 27th day -------------------------------------------------------------- ==== LASTJOHN Mailing List ====