The article on Dr Sarah Morrow is contained in an interesting book on Fannin County, Texas. Here is the link:
I am related to the Morrows. Sarah's husband Dr James Harrison Morrow was my 3rd great uncle, His father, Matthew Morrow was my 4th great Grandfather. Dr James and Dr Sarah Morrow had a son, Dr Wiley C Morrow (1st cousin 4x), My 2nd great grandmother, Dr Minnie O Parrish was in practice with her cousin Wiley Morrow for a short time around Trenton, I'm guessing that would have been around 1910. Dr Parrish was still living when I was a child.
Your family tree is not yet on Wikitree and I see that you have just joined, Welcome to Wikitree ! We are undoubtedly cousins of some degree. How are you related to the Morrows ?