To anyone who finds this info in the future...

I gave Charlie the wrong citation for the census records for Robert BLANKENSHIP [son of John].

He is NOT the Robert L. in Lamar County, TX. in 1910 and 1920

He IS the Robert W. in Hunt County, TX in 1910

BLANKENSHIP, ROBERT W (1910 U.S. Census)
TEXAS , HUNT, 5 J-PCT
Age: 41, Male, Race: WHITE, Born: TN
Series: T624 Roll: 1566 Page: 97

I have not found him in Hunt, Fannin or Lamar Counties in 1920 although he is buried in Fannin County with a recorded death date of 1928.

Sorry I temporarily lead anyone down the wrong path. Suzie