He was the wife of General Thomas Gage. General Thomas Gage was the leader of the British Army during the American Revolutionary War. It is history that Margaret Kambal used to sing the American Revolutionary War and on his own husband. Those who think that she has betrayed her husband, telling them that she was born as a born American In 1775, he was sent to England for spies for espionage. Born in 1734, this mesmerizing woman died in 1824.