You probably haven't looked at this in ages, but I think the John Z Henning in your family tree is my grandfather. His parents were, I believe William H Henning and Hannah Henning. I found that info somewhere else here on the site, and it matches up. John Z married Ada Evangeline Sutton, and had several children, including my father Richard John Henning. I never met my grandfather, and would be extremely interested in any photos or other information.