Thomas Jefferson Robertson was born in 1853 in Monroe County, Mississippi, died in 1933 in California. He had 4 wives - ?? Haddock or Hadcock, Evanna F. Richardson, Eliza J. Jenkins, and Anna Louisa Blackburn.

The father of Thomas Jefferson Robertson is believed to be Helam Robertson. Helam Robertson was reportedly of Irish descent, born about 1808 in Georgia or Alabama, died 1889 in Arkansas. His wife was Mary Ann Weaver, reported to have been a Cherokee Indian.

Helam's father is believed to be David Robertson (wife Mary) but I don't think there's enough proof yet to say for sure.