I'm not sure what you meant by this, "I would suspect that Camp Lowry was either at the Old County Fairgrounds north of Knoxville of at Decatur, County seat of Meigs County."

Decatur is in Meigs County but it is southwest of Knoxville, east of Rhea county, west of McMinn county, south of Roane, north of Hamilton and Bradley counties. I'm originally from that area.

Respectfully,

Gerald D. Hodge, Jr.
M.A. Military History - Civil War Concentration.
War Between the States Historian
Historian: 39th Georgia Volunteer Infantry Regiment