In both the 1920 and 1930 censuses Fannie GUY states that both of her parents were born in TN.
I found a possible match in the 1880 and 1900 census for Civil District 23, Bedford Co, TN. In 1900: REED, John T. b. Dec 1846 in TN, married 32 yrs, both parents b. TN wife Nancy M. b. Dec 1841 in TN, 7 children born, 3 children living, father b. GA, mother b. NC son Eugene H. b. Aug 1876 in TN dau Fannie B. b. Jan 1878 in TN son Finis T. b. Dec 1880 in TN sister-in-law CANNON, Jane C. b. Dec 1834 in TN, father b. GA, mother b. NC
In 1880: REED, John age 32 b. TN, both parents b. TN wife Nancy age 31 b. TN, both parents b. TN dau Mima E. age 11 son Richard age 5 son Jeny H. age 3 dau Fannie age 2 son Finis age 1 mother-in-law GIBSON, Bettie age 67, b. NC, widow, both parents b. NC niece GIBSON, Janie age 43 b. TN
The family was also in C.D. 23 in 1910.Fanny B. was the only child still at home.
There's a TN marriage record for Fannie Bell REED to Will GUY on 3-Mar-1913 in Bedford, TN.
There's a TN marriage record for John T. REED to Nancy M. CANNON on 7-Aug-1867 in Bedford, TN.
Here's a user submitted tree for John T. REED's lineage: https://familysearch.org/pal:/MM9.2.1/SPZD-JYK