I have the same Freeman family in Greene Co., AK. I have not seen the name spelled "Tiellman" but only "Tilman" Freeman. I have his wife as Mary E. so I didn't know it was Elizabeth. The children I have for this family are Louisa Jane, born 1857; Nancy C., born 1865; M. Ellen, born 1867; and an unnamed son, born 1870. Tilman's parents were George B. and Nancy Freeman. They were from NC. Tilman's sister, Demarias, is my ggrandmother. She married Cantrell Bethel Kennedy in Greene Co., and they lived out their lives there. I have some info on the other siblings if you want it.
I believe, but haven't proven, that Green Freeman is George's father. There were several Green Freemans in TN.