I am not related but have an interest in Carroll County research. Here are a few pieces of information that seem to add to the possibility that the George L. Gribble in Carroll County is the one from Warren County TN.
In early Arkansas land patent entries for Gribble are these entries:
1903, George L. Gribble, Carroll County, 018N - 023W
1894, heirs of Jeremiah M. Gribble (deceased) Carroll County, 018N - 023W,
(heirs not named)
Here is the link to Land Patents:http://www.glorecords.blm.gov/search/default.aspx#searchTabI...
Rootswebs World Connect Search Family Trees has an entry that shows Jeremiah M. Gribble and John Thomas Gribble to be brothers. Maybe George L. moved west with an uncle.
I did find two descendants of Jeremiah M. Gribble in Carroll Co. AR. His youngest son, Marian F. “Frank” Gribble, and his daughter, Martha J. Gribble. Frank married twice in Carroll Co, in 1900 using the name Frank Gribble, and in 1908 using his initials, M. F. Gribble. Martha married B. F. Usrey, in Carroll Co., I think in 1888. It appears her husband’s name was probably Benjamin Franklin Usrey for he is also shown as Frank. Frank Gribble is buried in Harrison, Boone Co. Martha and her husband are buried in Gobbler Cemetery in Carroll Co.
The death index for Carroll Co. AR shows the full name George L. to be George Leander Gribble.
If enough information can be found to tie George Leander Gribble back to Warren Co., TN, it might be worthwhile to send for his death certificate. However, death certificates can be disappointing if the informant did not know the names of the parents.