John Champe (1752-1798) enlisted as a volunteer in the Continental Army in 1776, was made a corporal in 1777, and had been promoted to sergeant by 1779. In 1780, Benedict Arnold's scheme to surrender the West Point fort to the British was discovered when John Andre (1751-1780), messenger to Sir Henry Clinton (1732-1795), was detained and executed. Washington's advisors then developed a plan to capture Arnold; at the suggestion of Major Richard Henry Lee (1756-1818), Champe was to be sent to the opposing camp to join Arnold's command under the guise of a deserter from the Continental Army. Once there, he was to apprehend Arnold on behalf of the American forces. This plan was foiled when Arnold's troops embarked for Virginia the day Champe arrived at camp, leaving him with no choice but to fight against the American army. He "deserted" again at Petersburg to rejoin Lee's command. Though Champe had been promised "ample rewards" and land grants, he never received compensation for his actions, arguably because he refused to accept Washington's proffered reward. He died in Marion County in present-day West Virginia, and his heirs did not receive a land grant or pension until 1835.
From the description of John Champe Chapter, Sons of the American Revolution collection, 1999-2001. (Unknown). WorldCat record id: 741077109