Hello,
I realized you posted this a while ago, but I may know some information on part of that side of the family. My Great Grandma was Mary Zalen Curtis (Harden) and I have a bit of info on her side of the family. I don't know a lot about her, as she died from cancer before I was born, but I've heard about her and could ask my Grandad questions if needed.

Good luck in your search!
Shannon (Harden) Carter