The soldiers shown in the rosters of the 15th Massachusetts Volunteer Infantry Regiment (where they originally enlisted) and who then transferred to the V. R. C. belong to Class 1.
United States Marine Corps | United States Army Corps of Engineers | United States Navy Reserve | Buxa Tiger Reserve | Peace Corps | United States Army Reserve | Royal Flying Corps | Case Western Reserve University | United States Army Air Corps | Royal Army Medical Corps | Civilian Conservation Corps | Naval Reserve | nature reserve | Army Air Corps | veteran | Corps of Engineers | Reserve Officers' Training Corps | Marine Corps Recruit Depot Parris Island | Vietnam veteran | Commandant of the Marine Corps | Royal Army Service Corps | Federal Reserve System | Royal Army Ordnance Corps | Marine Corps Base Quantico | Federal Reserve Bank of New York | Federal Reserve Bank | Royal Armoured Corps | Reserve Bank of India | Reserve Bank of Australia | Judge Advocate General's Corps |
On September 25, 1863, Sweet was appointed a colonel in the Veteran Reserve Corps and assigned to the garrison at the Union Army prisoner-of-war camp for Confederate States Army soldiers at Camp Douglas, Chicago, Illinois.