There are two Whaley soilders buried at Mountain Creek Cemetery No.2

I believe this is your gg-grandfather even though the name is slightly different on the stone, and probably your gg-granduncle:

WILLIAM M. WHALEY
PVT CO C 29 ALA
JULY 1 1844 - SEPT 19 1924

and

JOHN P.A. WHALEY
PVT CO C 29 ALA
- APR 19 1922

contact me at autaugarifles@hotmail.com for photos of the stones.