One of descendants, a great, great grandchild, verified the story and had seen the graves. I knew the graves stones were there 40 years ago when the grandchildren made a visit to their ancestors home. From their description of the graves, we kinda knew what to look for once we located the old home place.
I carried two dowsing rods and verified they were graves, which will open another conversation probably.
I couldn't see any markings on the grave stones either. Sometimes on old gravestones there will be a cross or a name and info scratched on the surface.
When I shared the pictures, the family said that was the graves of the two babies.