Yes I understand William Porter Stockton was born in or around Upshur County, Texas.
Samuel was William Porter Stockton & Isaac Thomas Stockton's father. William "Port" Stockton.
There is some mention of Porter Stockton in Erath County by 1870. He married Emily Cowan who is suppose to be from Cleburne, Texas.
This is the information we have at this time. Thank you for all your help.