Hi Joan---I'm sorry that none of the names you list are familiar to me.I am sure that somewhere along the way there would be some relation.
We are having a Flatt family reunion in Madison Co., (Anderson) IN. on May 3, 2009.There are two people new to our group that might have more information than I do.I will print your questions, and ask when (hopefully they attend) I see them.
I'll get back to you one way or the other.
There is little known info on my Flatt line other than my immediate people, with my great grandfather, Samual Amos Flatt being the only absolute known info.
I looked in my book Travis Flatt published, and find none of the names, either.