Ambrose Blacklock was a Scottish

Scotland

Scotland is a country that is part of the United Kingdom. Occupying the northern third of the island of Great Britain, it shares a border with England to the south and is bounded by the North Sea to the east, the Atlantic Ocean to the north and west, and the North Channel and Irish Sea to the...

-born farmer, physician and political figure in Upper Canada

Upper Canada

The Province of Upper Canada was a political division in British Canada established in 1791 by the British Empire to govern the central third of the lands in British North America and to accommodate Loyalist refugees from the United States of America after the American Revolution...

.

He was born in Dumfries

Dumfries

Dumfries is a market town and former royal burgh within the Dumfries and Galloway council area of Scotland. It is near the mouth of the River Nith into the Solway Firth. Dumfries was the county town of the former county of Dumfriesshire. Dumfries is nicknamed Queen of the South...

 and studied medicine in Scotland. In 1807, he was commissioned as a surgeon in the Royal Navy

Royal Navy

The Royal Navy is the naval warfare service branch of the British Armed Forces. Founded in the 16th century, it is the oldest service branch and is known as the Senior Service...

. He served on lakes Ontario

Lake Ontario

Lake Ontario is one of the five Great Lakes of North America. It is bounded on the north and southwest by the Canadian province of Ontario, and on the south by the American state of New York. Ontario, Canada's most populous province, was named for the lake. In the Wyandot language, ontarío means...

 and Champlain

Lake Champlain

Lake Champlain is a natural, freshwater lake in North America, located mainly within the borders of the United States but partially situated across the Canada—United States border in the Canadian province of Quebec.The New York portion of the Champlain Valley includes the eastern portions of...

 during the War of 1812

War of 1812

The War of 1812 was a military conflict fought between the forces of the United States of America and those of the British Empire. The Americans declared war in 1812 for several reasons, including trade restrictions because of Britain's ongoing war with France, impressment of American merchant...

. Blacklock lived in Cornwall

Cornwall, Ontario

Cornwall is a city in Eastern Ontario, Canada and the seat of the United Counties of Stormont, Dundas and Glengarry, Ontario. Cornwall is Ontario's easternmost city, located on the St...

 and later St. Andrews. He married Catherine Macdonell. Blacklock served as a justice of the peace

Justice of the Peace

A justice of the peace is a puisne judicial officer elected or appointed by means of a commission to keep the peace. Depending on the jurisdiction, they might dispense summary justice or merely deal with local administrative applications in common law jurisdictions...

 and coroner for the Eastern District

Eastern District, Upper Canada

Eastern District was one of four districts of the Province of Quebec created in 1788 in the western reaches of the Montreal District and partitioned in 1791 to create the new colony of Upper Canada. Known as Lunenburg District until 1792, it was abolished in 1849...

.

He represented Stormont in the Legislative Assembly of Upper Canada

Legislative Assembly of Upper Canada

The Legislative Assembly of Upper Canada was created by the Constitutional Act of 1791. It was the elected legislature for the province of Upper Canada and functioned as the province's lower house in the Parliament of Upper Canada...

from 1828 to 1830 as a Reformer.

He died at St. Andrews at the age of 82.