They were the parents! Look at their children? In 1900 Hamilton-Precinct 7-District 87-Image 22, Thomas W. Jackson shared the home of his uncle/aunt John/Dicey. I submit John Jackson was the younger brother of Thomas W. (The Elder). In 1850 MO-Newton-Shoal Creek-Image 1 find the family of William Jackson born about 1798 in Kentucky. Eldest son in this household was John Jackson age 18. I believe he's the same John Jackson found in 1900 Hamilton County? On Image 2 of 1850 Newton County Missouri lived the family of Thomas W. Jackson age 26 (The Elder). Jump to 1860 TX-Caldwell-Not Stated-Image 36. Find John Jackson in household #340 and Thomas W. Jackson in household #342. In my experience, family often relocated together. Unfortunately, neither head of household in 1860 was found in 1870. That would prove yea or nay the lineage of Thomas W. Jackson (The Younger).