Saw your message in the Nebraska Forum. I realize it's an old message, but thought I would offer what I know. My gg grandfather was Charles Alfred Cozad, Robert Henri's cousin. Their fathers were brothers. Charles' father was Abraham and Robert Henri's father was John Jackson Cozad. He founded Cozadale, Ohio and then Cozad, Nebraska, then the Boardwalk in Atlantic City, New Jersey. There is a book about John Jackson Cozad and Robert Henri's growing up called "The Son of a Gamblin Man". I believe it is out of print, but you can find it in some used book stores and libraries. Also, there are books about and by Robert Henri and tons of info on the internet on them, especially Robert Henri. Did you know that the Cozads are also related to Mary Cassatt. I'm not sure how yet, but I researching that. There are alot of fine books about her too. You can find them at Barnes and Noble and I'm sure other book stores. Yes, the Cozads are from France and if you go back further, from the Netherlands. They came to New Amsterdam in the 1600's. I don't know about the ones that settled in Wyoming, but I'd be interested, if you find out anything. If you want to know more, I will try to help.