)[1] As a younger son, Henry was not entitled to an inheritance and, about 1790, left for the United States to join an elderly uncle named Daniel McCormick, Esq.
In the Spring of 1799, Henry and his company were ordered to deploy to Northampton County, Pennsylvania to aid in suppressing Fries's Rebellion against Federal taxation.
These attracted the attention of Sir James Craig, then Governor-General of Canada, who employed him in 1809 to find out the extent of the reported disaffection to the U.S. government in New England.
Craig promised Henry office in Canada, but died soon afterward, and the spy's efforts to obtain his reward in London, meeting with no success, he returned to the United States.
En route to the United States in September 1811, he made the acquaintance of one Comte Edouard de Crillon who Henry took into his confidence and to whom he explained the entire affair.
In reality, De Crillon was not a French count, but a notorious con artist whose real name was Paul Émile Soubiran [fr].
Richard Leopold wrote, "In buying sight unseen, in February, 1812, the worthless Henry letters at the cost of a badly needed frigate in order to expose the supposed intrigues of the New England Federalists, Madison and Secretary of State Monroe looked like fools as well as knaves.
She was the daughter of Reverend Jacob Duché - a once-prominent Episcopal priest at Christ Church and the first official chaplain of the Continental Congress who later went over to the British side and was convicted of high treason against the state of Pennsylvania.
Elisabeth-Blois Henry married Adolphe de Chanal [fr] (who later became a brigadier general in the French army and served in the Franco-Prussian War) on February 24, 1844, in Nantes, France.
With half of this sum, Elisabeth-Blois and her husband Adolphe de Chanal bought the castle of Sédières [fr] in the department of Corrèze in France.