Lee Grave

I need to know where this grave is located.

LEE, Cary   05/30/1820 - 10/29/1903   wife of John

I found a family with a Mount Enterprise PO including John and Cara (age 40) LEE on the 1860 Census, page 302a, with 7 children. I DO NOT know that the John and Cara on the census are the same folks as the John and Cary on the tombstone.