Hi, I am Donnie Roton and live in Newberry SC. My grandfather was Bennie Rowell Roton and at least one of his brothers and maybe more spelled their last name Rhoten. Morgan was one of those.
I have one uncle in Lexington now that goes by Roton, his name is Clarence ( Bit ) Roton. I hope this helps you. If you have more info please let me know. My grandfather always told me his fathers name was Smyley Rotton. William S. ( Smyley ) Rotton. He died in 1903 and is buried at Shiloh Church Cemetery in Saluda SC.
Good luck with your search. The spelling of the last name has changed a lot over the years. I can tell you that in Edgefield County SC. they spell their last names Rauton, as you know most in Lexington spell theirs Rhoten and from what I have learned many still go by Rotton but most of them are now in Alabama, Arkansas and Texas