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William McMillan (March 2, 1764 – May, 1804) was a Delegate to the United States Congress from the Northwest Territory.

William McMillan
Member of the U.S. House of Representatives
from Northwest Territory's at-large district
In office
November 24, 1800 – March 3, 1801
Preceded byWilliam Henry Harrison
Succeeded byPaul Fearing
Personal details
Born(1764-03-02)March 2, 1764
Washington County, Virginia
DiedMay 1804 (aged 40)
Cincinnati, Ohio
Resting placeSpring Grove Cemetery
Alma materCollege of William & Mary

He was born near Abingdon, Washington County, Virginia. He graduated from the College of William and Mary, Williamsburg, Virginia. He studied law and then moved to Cincinnati, Ohio) in 1789. He was admitted to the bar in 1788 and commenced practice in Cincinnati. He became the first justice of the Court of General Quarter Sessions in 1790.

McMillan served with Captain Robert Benham as Hamilton County Commissioners before both were elected to the Territorial House of Representatives in 1799 and 1800. He was elected to the Sixth Congress to fill the vacancy caused by the resignation of William H. Harrison and served from November 24, 1800, to March 3, 1801. He declined renomination in 1800. After the admission of Ohio into the Union in 1803 he was appointed United States District Attorney for Ohio, but owing to declining health did not assume the duties.

He died in Cincinnati, Ohio, in May 1804. He was buried in Spring Grove Cemetery.


  • Bloom, Jo Tice. "The Congressional Delegates from the Northwest Territory." Old Northwest 3 (1977): 3-21.


  • United States Congress. "William McMillan (id: M000571)". Biographical Directory of the United States Congress.
Political offices
New district Member of the Northwest Territory House of Representatives from Hamilton County
Served alongside: Captain Robert Benham, Aaron Caldwell, Samuel Findlay, William Goforth, John Ludlow, Isaac Martin, John Smith
Succeeded by
Francis Dunlavy, John Ludlow, Moses Miller, Jeremiah Morrow, Daniel Reeder, John Smith, Jacob White
U.S. House of Representatives
Preceded by
William Henry Harrison
Member of the U.S. House of Representatives
from Northwest Territory

November 24, 1800 – March 3, 1801
Succeeded by
Paul Fearing