I do not have much information about Thetis. However, when Aaron M. Noland married her, she brought into my genealogy two of brothers of James Noland, Aaron's grandfather. Those bothers were Jesse and Ledstone. She, also, brought into my genealogy a sister of Aaron's mother. Aaron's mother was Susannah McMonegal and Thetis' grandmother was Susannah's sister, Nancy.
Both of them lived through the Civil War and were affected by it greatly. There will be more on all of that.