This was posted by the Administrator of the ILSTANN List Rootsweb List. My genealogy program does it but they don't all do. It's a handy little tool ********************************************* Since we work in an area and time when it was usual to carve the decedent's age at death on his grave-marker and not including the birth date - WE NEED THIS! Courtesy of RootsWeb Review, here is: A Cool Tool: The Birth Date Calculator is designed to determine a birth date when the age at death and the date of death are known. http://longislandgenealogy.com/birth.html from Ginny Crawford, administrator