Send a message to the person who requested a photo of the grave monument of Peter Jack with the following comment:
My name is Peter Jack my great grandfather John Jack and his wife and children who lived in Crieff moved to Brisbane Australia at the beginning of 1900. The Jack family still live in Crieff and we are saving and planning to visit them later next year. I do have the lineages and am happy to share what we know. I think the grave would contain my namesake relative given it was a small town and unusual surname. Thank you for your help. Kind regards to you