Civil War cover with #65 3c rose tied by CHESTERTOWN/MD. cds postmark, addressed to "Dr. Charles Macgill, care of Col. Dimmick, Commanding at Fort Warren", and with Boston receiving postmark on the back. 

Charles Macgill, of Hagerstown, MD, was political prisoner at Fort Warren, in Boston Harbor. He was Major General in the Maryland, Militia, and co-editor of a Hagerstown newspaper. Arrested at his home on Sept. 30, 1861, by order of the Secretary of State. Believing his arrest was a violation of his Constitutional rights, he pushed two Union soldiers down the front steps of his home, and his daughters attacked them with a buggy whip. 

"Col. Dimmick" was Col. Justin Dimmick, (1800-1871), an 1819 West Point graduate; He was commandant of the Fort Warren prison from 1861 to 1864, and was regarded as kind and considerate by the Confederate prisoners there. 

Scarce. 

Very Fine. 

COMBINED SHIPPING FOR MULTIPLE ITEMS.