She died in England in 1824. Historical texts, most notably Paul Revere"s Ride suggest that Gage provided Joseph Warren with information regarding General Gage"s raid at Lexington and Concord. Although there is no documented evidence that confirms Gage as Warren"s informer, speculation of her being a spy for the patriots remained due to her familial ties to America.
As a result, Gage was sent to England aboard the Charming Nancy on her husband"s orders in the summer of 1775.
Margaret Kemble was the great-granddaughter of Mayor of New York City Stephanus Van Cortlandt and Gertrude Schuyler of the Schuyler family. She was the daughter of Peter Kemble, a well-to-do New Jersey businessman and politician, and of Gertrude Bayard.
Together they had eleven children. Their first son, the future 3rd Viscount Gage, was born in 1761.
Gage"s daughter, Charlotte Margaret Gage, married Admiral Sir Charles Ogle.
Descendants of Kemble Gage include: Lieutenant General Sir John Paul Foley (1939) retired British general Montagu Bertie, 6th Earl of Abingdon (1808-1884) British peer and politician John Vereker, 6th Viscount Gort (1886-1946) British military officer Gabriella Wilde (since 1989) British model and actress Her brother, Stephen Kemble, was a Lieutenant-Colonel in the British Army during the Revolution. In the 2015 miniseries, Sons of Liberty, Gage is portrayed by Emily Berrington.
Henry Hodgetts-Foley (1828-1894) former member of Parliament.