Arnold Carter and Roy Carter were brothers of my father, Leonard. Curt and Mutt were brothers and cousins of Arnold, Roy, and Dad. They all grew up together and, at times, in the same home. Roy had quite a reputation as a very good player.
The location of this photo was most likely on what was once called Old 60, now Midland Trail, more or less east of Grayson. They had a baseball field, I understand, near where the road to Beckwith Branch intersects with Old US 60. There was a large horse barn there in the more recent past.
I would guess that this photo was taken circa mid to late 30s.