Thomas and Missouri probably lived in St. Louis until their deaths. Thomas died on July 25, 1895 and Missouri died on December 17, 1913 (these dates came from the St. Louis Public Library obituary index). Missouri was enumerated in the 1900 census in Bonhomme, St. Louis, MO (page 40A) and in the 1910 census somewhere in Missouri (I just found her name in the index but have not seen the actual record). Their son George was enumerated in the 1900 census with his mother and in the 1920 census in St. Louis with wife Bessie. He doesn't seem to be in the 1930 census.
Please contact me directly if you would like more information about the Windleys. I would love to see what you have about the Eoffs.