My greatgreat grandmother, Mary Wyatt Mitchell was born in England @1855. Her father John, also birth in England, is in St. Louis by 1870 (census record) as is Mary, her mother Sarah, brother Edward, sisters Lucy and Abigail. I do not have Mary or John's place of birth except country. John is born about 1853. My grandmother told us that Mary Wyatt's family was descended from Sir Thomas (but I have no confirmation of that). Also, my grandmother remembers Omar Bradley coming to the house to say good-bye to "Aunt Mary" before going to West Pointe. Again, I have not found how they are related, but Omar Bradley is from Missouri. Lastly, have you visited www.wyatt.family.tree.mcmail.com
? It is very comprehensive with lots of info on Wyatts and descendants in U.S.