What I have on your branch starts with John Byram, b.1792 who was the first postmaster of Byram, MS.He had 11 children by two wives.One son Jackson Clark was born in 1824.Jackson Clark had 10 children and your William David Byram was the 5th.
This is all well documented in my book, "Byrams In America."All the children in this branch are will documented.The book sells for $45.00 and that includes postage.
You may be the one to find the parents of John Byram, b.1792.Lots have worked on this problem.I would like to work with you.Also William David had 4 other children, Rudolph Pierce 1882, Jessie Lou 1884, Arthur Sherwood 1886, and Maurice Wilson. (firstname.lastname@example.org)