I have just come across this photo. It was sent to me by a member of Chucks extended family. I figure it was circa 1880. The older couple I think are Chucks great great grandparents. They had two sons and two daughters. That would account for the two younger women and four young men in the back. Interestingly the fellow seated on the lower right looks like he was pasted in later. I think they did that sort of thing then. To expensive to take another photo.
My goal is to find out their names, although I have some ideas.