Are head stones acceptable proof for Geno. Information.?

Question:

Are head stones acceptable proof for Geno. Information.?

Additional Details

3 months ago
This is exactly what I asked. For now all I have is the headstone but I will keep searching. Thanks for the info.

Best Answer - Chosen by Asker: 3 months ago
This is exactly what I asked. For now all I have is the headstone but I will keep searching. Thanks for the info.