Send a message to the person who requested a photo of the grave monument of Benjamin Crowther with the following comment:
Just stumbled across this and I believe Crowther was my grandmother's maiden name. Just curious to figure out if this grave could belong to a family member. To be honest I don't know much about all of my family that are living so could be completely off the mark here. It's no bother if it's too inconvenient for you to send the picture, thank you.