I received this message from Donald Eugene Langford so please direct inquires/comments to him.
I am a 4th generation Langford after Rufus Wiley Langford and my DNA does not link to the Rev John Langford! Rufus was raised in SC and move to TN - his first child was born in TX (very iffy proof) then John ‘Thomas’ Langford (my great grandfather) was born in Overton county TN - he had children there, then moved to KY, then moved to Montague County TX. Most likely and records of Rufus were burned in the fire in Overton?
But the link between Rev John & Rufus is your guess. [NO DNA PROOF]
I think the best way to possibly find the real parents of Rufus Wiley Langford is to remove John & Martha as parents. I have Rufus on Wikitree.com without parents. On MyHeritage neither Andy Langford or my tree had a parent link but someone made the link and I cannot remove it so I stopped paying as of April 24th.