You gotta be kidding me!
I don't know where Clarksville is, but you may have to drive to the nearest "big city" if you can't find a drum in your backyard.
Here are some likely spots to look for drums:
Feed Stores
Oil Company
Paint Co.
Diesel Shop
Construction Co.
Food processors
Drum & Barrel reconditioner
Salvage yard
Army Surplus
order a brand spanking new one from Grainger!
Most closed drums are unlined and a Weber kettle lid will fit in most cases.
Diesel shops have open drums with lids for lube, that usually comes packed in a plastic liner and some drums are unlined or painted with rust inhibitor, Paint companies use drums that have paint products in liners, soap makers use coconut oil etc, etc, get creative - beggars can't be choosers, or not!
Feed Stores sometimes sell drums for dry storage
Construction companies use drums for hazardous waste, overpack drums for those...
Food processors use drums of olive oil etc.....
just sayin'
Nashville??