I looked in the online index for the state death records, and she's not listed.
I don't know if this helps or not, but I checked the Social Security death index, and there are 2 Cora Tumlins. Both had their cards issued in Georgia.
Cora Tumlin born 7/5/1882 died December 1969 (87 years old) last address of record Birmingham, Jefferson County, AL
Cora M. Tumlin born 5/31/1895 died 1/26/1988 (92 yrs. old.)
last address of record Greensboro, Guilford, NC