I am doing a detailed historical study of Precinct 8 in Live Oak County, Texas. Your Johnson ancestors did not live in this precinct nor are they buried in a cemetery in this precinct. Nor are they buried in the Three Rivers Cemetery. www.findagrave.com
is very active in Live Oak County. You may look through the cemeteries in the county. Not all the graves are registered yet. It would help if you knew the town or Precinct. e-mail me at firstname.lastname@example.org
for further discussion.