{My dad's}G-g Uncle Will Carnahan, age 80

This is one of many photos in my father, Jack Bobbitt's photo album (his father was Captain Roy R. Bobbitt). This could have been taken where my father was born (Parkersburg) or maybe in Canton,OH, where they moved to at some point after my dad was born. I have NO idea who this Will Carnahan is....but, it says "Great great uncle Will Carnahan....Aged 80", there is also a picture of a horse, titled "Dodie".

I have no idea HOW Will Carnahan is related to my dad....we don't have much information for either side of my dad's family, but my dad's mom's name was Mary Gnau; she had a brother Paul.