Yes. At 55 about the only service Amos could have provided was in a county homeguard -- and in my other families such an "old" man would have been a community leader from the onset of war.
According to what family has handed down, my Amos joined the fight and left Delilah in GA (no regiment number/name has ever been produced). After the war, they say he was on his way back home to Georgia, but stopped to spend the night in Eva, AL with his company: He and two of his fellow soldiers (Ed Singletary and John L. Manous) woke up to find their entire company gone, so they took refuge at the William R. Derrick home and, subsequently, took up housekeeping with Derrick's widowed daughters.
The family lore is confusing, and it creates conflicts. Some say Amos joined Quantrill's Raiders (?!), but there's little to no likelihood a low-rank, older man would journey 500-600 miles to ride with a bunch of partisans/ruffians. Also, there were two Delilah's in Georgia; the older Delilah Tate (b. 1805) whom Amos really did marry; and the younger Delilah Chaffin who married Hiram Alexander Worthy in Dec. 24, 1868. Some histories try to combined the two women.
Your story -- that Amos was widowed and moved into Morgan County afterward -- is more logical.
Thanks,
David