Wow. I'm very familiar with the work of Solomon Butcher. I've read about everything I can find online about him, and I've pored over his photographs for hours. I've even tried to imitate the look of his photographs by using my own large format camera and antique lenses. The starkness and deceptive simplicity of his photographs are simply stunning to me.
It looks as if the grave is at the bottom of a little hill. And maybe it's in late Fall or early Winter...maybe even early Spring? There are no leaves on the little trees. And there are small evergreens planted on the grave. They look like hemlocks. I have a huge one in my front yard that my dad planted over fifty years ago. Are the trees still there, I wonder? Have you visited the site? Sorry, stuff like this just gets my brain to spinning around, thinking and wondering about things I see in a photo. Is that photograph in your possession? If so, that's great, even if it is a print and not the original.
For any serious photographer, that is a visual treasure to be cherished.