History of US Mission in Canada | The Brian Mulroney Institute of Government

This page discusses the history of the US mission in Canada along with the historic and modern role played by the Consulate Generals in creating and facilitating economic/political relations and agreements.
This resource highlights that the US has maintained an official presence in Canada since 1833 with the opening of the first Consulate in Halifax and discusses the services provided by Consulates that have opened since that time.
This source also outlines several key moments between Canada and the US in its early relationship including :William Phillips being appointed as the first US Minister to Canada in 1927; and the US delegation in Ottawa being upgraded to embassy status in 1943 to recognize Canada's independent foreign policy and to promote more wartime cooperation between Canada and the US.
Additionally, this source highlights how the U.S. Embassy and Consulates have played a vital role in bilateral and multilateral relationships between Canada and the United States for well over a century.

Citation

U.S. Embassy & Consulates in Canada. History of the U.S. Mission in Canada. United States Department of State. https://ca.usembassy.gov/our-relationship/policy-history/io/ (accessed April 14, 2022).