I can provide some information about John Adams and what happened to him when he went west. I have a copy of his pension file, which shows that he died in 1872 while living in Mills Co., IA. He and his wife were both trying to get a pension in his name for his service in the War of 1812. She thought he died in the 1850s because she had not heard from him, but he actually was still alive and remarried in Mills Co., IA.
I descend from Rebecca (Sellers) Adams' brother Jonathan Sellers.