[1] "Blessed with as many lives as a cat", he recounted his time with the Ojibwe and subsequent explorations in his Travels and Adventures in Canada and the Indian Territories between the years 1760 and 1776 (published in New York City in 1809), which he dedicated to his friend Sir Joseph Banks.

An "easy and dignified" raconteur, in 1776 Henry was invited to give an account of his journeys at the Royal Society in London and at Versailles to Queen Marie Antoinette.

In 1760, after Wolfe's victory at the Battle of the Plains of Abraham, Henry was placed in charge of three loaded supply bateaux, which followed Lord Amherst's advance along Lake Ontario to Montreal.

[5] In early 1761, at Les Cèdres, Henry met the former fur trader Jean-Baptiste Leduc, who acquainted him with the rich possibilities of trading at Michilimackinac and around Lake Superior.

[6] Henry wrote, "proposing to avail myself of the new market, which was thus thrown open to British adventure, I... procured a quantity of goods" and set out on the Ottawa River to Fort Michilimackinac.

In 1761, as they travelled west, Henry was repeatedly warned by the Indians they encountered not to risk his life among the Ojibwe, who remained fiercely loyal to the French.

They returned to Michilimackinac in the spring of 1764 to trade their furs, but some of the Ojibwe residing in Saginaw Bay plotted to kill Henry, and Wawatam permitted him to go to Sault Ste Marie to seek the protection of Cadotte.

In 1767–68 he wintered on the Michipicoten River and entered into a partnership with Sir William Johnson, the Duke of Gloucester and others, forming a company to mine silver found in copper ore on the shores of Lake Superior.

[12] In 1776, Henry set off by foot to Fort à la Corne, following the Saskatchewan River, and having satisfied his curiosity secured some furs from the Assiniboines.

He then purchased 12,000 additional beaver skins from a trip up the Churchill River from the Chipewyans, and some of his last packs were forcibly acquired from Robert Longmoor, an agent for the Hudson's Bay Company.

Laden with furs, Henry returned to Montreal and gave the governor, Sir Guy Carleton, a large map of the western region through which he had travelled.

Henry's imagination was caught by the rich potential of the Northwest Territories and he sailed to England in the autumn of 1776 with a proposal for the Hudson's Bay Company.

Though he was a natural raconteur who was used to winning friends with ease, it was a great sadness to Henry for the rest of his days that he was met with nothing other than condescension from the young queen and her court.

[14] Henry returned to British North America in 1777 in partnership with Jean-Baptiste Blondeau andtaded at the Michipicoten River and Sault Ste Marie; all the time, he worked closely with his old friend Cadot.

Fascinated by the prospects offered by the Pacific coast, Henry passed on his ideas, which he called "my favorite plan," to the New York merchant John Jacob Astor.

In 1792, a fur trade partnership between John Forsyth, Jacob Jordan and Alexander Ellice attempted to entice Henry and Peter Pond to join them in opposition to the North West Company.

In 1812, he was appointed vendue master and King's Auctioneer for the district of Montreal, working in partnership with his nephew Norman Bethune, who lived with him at 14 Rue Saint-Urbain.

In 1809, Henry had written to Askin, "There is only us four old friends (James McGill, Isaac Todd, Joseph Frobisher, and himself) alive, all the new North westards are a parcel of boys and upstarts, who were not born in our time, and supposes they know much more of the Indian trade than any before them."

To recapture his exciting past, he wrote a memoir of his life which he published in New York that year and dedicated to his English friend, Sir Joseph Banks.

[16] She was a native of Limavady and the widow of an Anglo-Irish army officer, John George Kittson (d. 1779), whose home was in County Cork but had seen considerable service in North America.