Hugh Mercer was a United States military officer and hero who fought in the Seven Years’ War and the American Revolutionary War. He started his career in medicine, which aided him throughout his life, even while serving in the military.
Mercer was born in Pitsligo Kirk, which is his family’s farm
in Aberdeenshire, Scotland, in 1725. He was the son of Rev. William Mercer and
his wife, Anna Munro. He obtained a medical degree from the University of
Aberdeen at the age of 19. Mercer and his family were all Jacobites, which led
him to fight for the cause. He joined Prince
Charles Edward’s army as a surgeon’s mate and was at the Battle of Culloden.
After supporting the unsuccessful Stuart, Mercer fled to
America in May of 1747, where he started a medical practice in Philadelphia. He eventually moved to the Cumberland Valley
and then established a farm in Conocoocheague, where he set up a successful
medical practice.
During the French and Indian War, Mercer was an officer of
the Pennsylvania Regiment. He served as a surgeon who treated those who were
wounded throughout the battles. It is believed that he may have been present at
Major General Edward Braddock's defeat by the Indians at the Monongahela River
(near modern-day Pittsburgh).
Later, he worked in Virginia as an apothecary. While in
Virginia, it is said that he was friends with George Washington, who lived
nearby. When the Revolutionary War
started, Mercer was appointed as a colonel. A year later, he became a brigadier
general. During the Battle of Princeton on January 2, 1777, Mercer was struck
repeatedly with a bayonet after his horse was shot down. He died due to his
injuries a week later.
Mercer is remembered as a military hero. Washington, in a letter dated January 5, 1777,
to the President of Congress, lauds Mercer as "the brave and worthy Gen'l
Mercer." The Continental Congress voted to erect a monument to honor him,
but this was not achieved until 1902. He is credited with creating the military
strategy that led to the triumph at Trenton, where a surprise attack was staged.
Sources
-"Hugh Mercer." Dictionary of American Biography,
Charles Scribner's Sons, 1936. Gale In Context: Biography,
link.gale.com/apps/doc/BT2310007613/BIC?u=philly_free&sid=bookmark-BIC&xid=296fed7a.
Accessed 16 July 2026.
-Bellesiles, Michael. "Hugh Mercer." Encyclopedia
of the American Revolution: Library of Military History, edited by Harold E.
Selesky, Charles Scribner's Sons, 2006. Gale In Context: Biography,
link.gale.com/apps/doc/K3454901020/BIC?u=philly_free&sid=bookmark-BIC&xid=44b6ce20.
Accessed 16 July 2026.
-https://encyclopediavirginia.org/entries/mercer-hugh-1725-1777/