Great Great Grandpa?

A new page in my art journal that I finished last night sitting at my Mom and Dad's kitchen table.

I took a photograph of my drawing and cut this man out of it. I glued him on the page of my journal and began to design my page. I wish I knew for sure who he was.  A few people in my family think this my Great Great Grandpa Mc...but others thought the other man, in the picture, was my Great Great Grandpa Mc.  I am still trying to find the origional photo... to see if my Grandma Mc wrote who they were on the back of the photo.  She was always really good about doing that.  As a child, and grown adult, I loved looking at all the old photos that she had. I would pull them out every time I would visit her.