I thank so many of you for your information on Hinkleville and the cemetery where I will find Elbridge Burr. I have found the following website that has a formula to help in determining the birthdate of an individual from the death date and age at date of death. I tried it and it worked! <A HREF="http://www.rootsweb.com/~hcpd/formula.htm"> Determining Date of Birth from Date of Death and Age at Death</A> http://www.rootsweb.com/~hcpd/formula.htm