THANK YOU. On 12/16/2011 6:46 AM, Morrow Family wrote: > Maxine: > I don't know how you (or I) can calculate the date with confidence, but FTM > has a date caluculator under "tools." > I plugged in you information and it gave back a birth date of 18 Sep 1783. > duncan > > >> Good morning, >> WOW, I just received copies of the family Bible of my Great Great >> Great Grandparents (1790-1850). >> It states my ggg grandmother died 20 Oct 1854 at 71 years, 1 month and 2 >> days. How can I calculate her exact birth date? >> Thanks so much. >> Maxine >>