William Russell Bruce (Sr) & unknown first wife

This is a picture my mom,Betty Jo Bruce Baker, has had a long time of her father William Russell Bruce and his first wife. At the time my grandfather's family lived in Davidson County, TN. We would love to know who thi pretty lady is.

This is a picture of my grandfather and his first wife. My Mom has had this picture. I tried to "clean it up" a little. We know that Russell (or sometimes WR Bruce) married my grandmother, Mary Hamilton Crouch (aka: Mamie, Mayme, Mymie,or possiblly more spellings) on Sept 16, 1913. So this would have been taken before then. We were told that she died either during child birth or shortly after. The baby, we believe may have been named Marion, then died, but we are unsure whether he lived days or weeks or months. I'm not sure how the picture is going to come thru, but she seemed very fair complected and seems to have small features. My grandfather was not a large man. I have found that his father was JR Bruce and mother Mary. My grandfather had a large group of siblings. Names include: Curtis,Edmond Spencer, Ocie,Juanita, Savannah, Robert,Perle, George, Henry and others. Any help anyone can give would be greatly appreciated. Thanks...