I guess the date of this photo to be sometime shortly before the turn of the 20th century. The setting is almost certainly Indiana, where both the Gray and the Munson families hailed from. My Grandfather's mother was named Carrie Lee Moore, and that's her standing. It may be her husband to her right (left in picture), my great grandfather Harvey Gray. The stern looking woman seated is likely to be Carrie's mother, Marie Asire Moore. It isn't likely that the man with goatee is Carrie's father, Robert Moore; that man was 71 in 1900.