I am sorry that it took two years for me to find your message. I wonder where it was buried.
I am still trying to connect my Bagnell family with the Bagnells in Mo. Do you have any information about Thomas' ancestors? My family went to Quebec from Ireland, in the 1820s. The first there was a Robert Bagnell. I believe that it was his son or grandson, Wlliam, who then went on to Mo.
I have run across the names of the people to whom you are referring, but I have no idea if they are related to me. Try looking up Ray Parson's website. Some of his information is not accurate, but he has quite a lot about the Bagnells.