Samuel Lemuel Duty was my grandfather's uncle. Matilda was Samuel Lemuel's wife. The rest of what you have is somewhat correct, except that the one called "Ernie" is my grandfather, Ernest Samuel Duty, and his wife was named "Hattie", not Laura. So, you are really close on the lineage of these Duty's. Agnew was my grandfather's oldest brother. He is buried right here in Jonesboro at the head of my sister, Patsy's, grave and his second wife, Ada, is buried in Jonesboro, too, but in another cemetery. I hope I have helped.