Mr. Spain James F.Garrison (1840-1921)is my gg-grandfather
I also believe he served in 13th Al.and 1st.Ga.inf.(Ramsey`s)
I also believe his father was named James F.
Also there are James F.Garrisons in Fannins 1st.Ga.
49th Ga.and 1th Ga. cavalry. Happy hunting.
Try Marshall Co.Al for pension record.