Here in a condensed form is what I have on the Treason Trial of Peter Suman, Yost Plecker, & Casper Fritchie (father-in-law of Barbara Fritchie):

From T. J. Williams History of Frederick County (paraphased)(page 96):

Peter Sueman, Nicholas Andrews, John George Graves, Yost Plecker, Adam
Graves, Henry Shell, and Caspar Fritchie were tried before a special court
and found guilty of high treason, for "enlisting men for the service of the
King of Great Britain and administering an oath to them to bear true
allegiance to the said King and to obey his officers when called on." The
sentence imposed upon these men was the dreadful penalty for treason under
the common law of England and was at that time in force in Maryland. The
sentence was that the men should be hung by their necks, cut down while
alive and disembowled and their entrails burnt before their eyes, then
their heads to be cut off and the bodies quartered (hung, drawn and
quartered).

Henry Shell was pardoned and was to enter himself on board of an english
navy ship.

From "The Church of the Singing Hills" by H. Austin Cooper - "A history of
the Locust Grove Church of the Brethren at Linganore Creek, Mt. Airy,
Maryland 1760-1988. Including history of the Bush Creek of the Brethren,
Monrovia, Maryland, 1780-1988." Pages 344-345

The name of John Parks of Baltimore was added, but later pardoned for the
sum of $1,000, and gave a bond of $1,000, on good behavior.

Other names listed but not convicted were: Henry Newcomer, a Mennonite, of
Washington County, ? Bleachy, of Washington County, Kelly and Tinkles, of
Frederick County.

Three were convicted and executed on August 17, 1781 before the main
courthouse at Frederick. Casper Frietchie, of Frederick, Yost Blecker
(Plecker), of Frederick County, Peter B. Suman, a farmer (of Burkittsville
District).

In the case of Peter Suman and probably the other 3, his land and
possessions were seized by the government. Later, Peter Suman's widow
brought suit and was given them back.

Hope this is of interest.

Vicki