Another tip from the Roots Web Review (Vol. 4, No. 35, 29 August 2001) We've all had one of those markers with the date of death and age at death. Yeah, but how do you calculate the birthdate? Roots Web suggested a site that will do this for you! I tried it out and it works! Thanks Roots Web Review! And another big thanks to Bill Principe for asking about this. CindyHMB BIRTH DATE CALCULATIONQUESTION. Do you know where can I find a small program, which runs under Windows, that will allow me to calculate birth dates based on age at death from gravestones? You know the gravestones I mean--Example: "Clarissa Grant died on 24 Oct 1879 aged 67 yrs 9 mos 24 dys." It's too easy to make a mistake in these calculations. Bill Principe ThePrincipes@earthlink.net ANSWER. Some of the RootsWeb Review readers may know about such a utility software program for this, but there is a Web site that will do the calculation for you: <http://searchforancestors.com/utility/birthday.html>http://searchforancest ors.com/utility/birthday.html Published in RootsWeb Review: Vol. 4, No. 35, 29 August 2001.