Duncan E. McKinlay was a U.S. Representative

United States House of Representatives

The United States House of Representatives is one of the two Houses of the United States Congress, the bicameral legislature which also includes the Senate.The composition and powers of the House are established in Article One of the Constitution...

 from California

California

California is a state located on the West Coast of the United States. It is by far the most populous U.S. state, and the third-largest by land area...

.

Born in Orillia, Ontario

Ontario

Ontario is a province of Canada, located in east-central Canada. It is Canada's most populous province and second largest in total area. It is home to the nation's most populous city, Toronto, and the nation's capital, Ottawa....

, Canada

Canada

Canada is a North American country consisting of ten provinces and three territories. Located in the northern part of the continent, it extends from the Atlantic Ocean in the east to the Pacific Ocean in the west, and northward into the Arctic Ocean...

, McKinlay attended the common schools.
Later learned the trade of carriage painting and worked in Flint, Michigan

Flint, Michigan

Flint is a city in the U.S. state of Michigan and is located along the Flint River, northwest of Detroit. The U.S. Census Bureau reports the 2010 population to be placed at 102,434, making Flint the seventh largest city in Michigan. It is the county seat of Genesee County which lies in the...

, and San Francisco, Sacramento, and Santa Rosa, California.
He studied law.
He was admitted to the bar

Admission to the bar in the United States

In the United States, admission to the bar is the granting of permission by a particular court system to a lawyer to practice law in that system. Each U.S. state and similar jurisdiction has its own court system and sets its own rules for bar admission , which can lead to different admission...

 by the supreme court of California in 1892 and commenced practice in Santa Rosa, California

Santa Rosa, California

Santa Rosa is the county seat of Sonoma County, California, United States. The 2010 census reported a population of 167,815. Santa Rosa is the largest city in California's Wine Country and fifth largest city in the San Francisco Bay Area, after San Jose, San Francisco, Oakland, and Fremont and 26th...

.
Second assistant United States attorney at San Francisco 1901-1904.
First assistant United States attorney 1904-1907.

McKinlay was elected as a Republican

Republican Party (United States)

The Republican Party is one of the two major contemporary political parties in the United States, along with the Democratic Party. Founded by anti-slavery expansion activists in 1854, it is often called the GOP . The party's platform generally reflects American conservatism in the U.S...

 to the Fifty-ninth

59th United States Congress

The Fifty-ninth United States Congress was a meeting of the legislative branch of the United States federal government, composed of the United States Senate and the United States House of Representatives. It met in Washington, DC from March 4, 1905 to March 4, 1907, during the fifth and sixth...

, Sixtieth

60th United States Congress

The Sixtieth United States Congress was a meeting of the legislative branch of the United States federal government, composed of the United States Senate and the United States House of Representatives. It met in Washington, DC from March 4, 1907 to March 4, 1909, during the last two years of...

, and Sixty-first

61st United States Congress

The Sixty-first United States Congress was a meeting of the legislative branch of the United States federal government, composed of the United States Senate and the United States House of Representatives. It met in Washington, DC from March 4, 1909 to March 4, 1911, during the first two years of...

 Congresses (March 4, 1905-March 3, 1911).
He was an unsuccessful candidate for reelection in 1910 to the Sixty-second

62nd United States Congress

- House of Representatives :* Democratic : 230 * Republican : 162* Socialist : 1* Independent : 1TOTAL members: 394-Senate:* President: James S...

 Congress.
He was appointed by President Taft as United States surveyor of customs for the port of San Francisco, California

San Francisco, California

San Francisco , officially the City and County of San Francisco, is the financial, cultural, and transportation center of the San Francisco Bay Area, a region of 7.15 million people which includes San Jose and Oakland...

, in 1910.
He died in Berkeley, California

Berkeley, California

Berkeley is a city on the east shore of the San Francisco Bay in Northern California, United States. Its neighbors to the south are the cities of Oakland and Emeryville. To the north is the city of Albany and the unincorporated community of Kensington...

, December 30, 1914.
He was interred in Sunset Cemetery.