Defenders’ Day is a Maryland holiday celebrated on September 12th to honor the defense of Baltimore against the British during the War of 1812. The holiday is observed in Baltimore City and the surrounding Baltimore and Harford counties.

Although Defenders’ Day is primarily celebrated in Baltimore, it has notable ties to Harford County as well. John Adams Webster, born in Harford County, served in the Battle of Baltimore during the War of 1812. Despite being wounded, Webster remained at his post during the attack on Fort McHenry, playing a key role in defending the fort against the British. His shoulder was permanently injured in the battle, yet he continued to serve as a captain for many more decades.
Webster later retired to Mt. Adams farm in his home county of Harford, where he is still honored today during Defenders’ Day celebrations. John Adams Webster was related to President John Quincy Adams and is also an ancestor of the present-day county executive, Bob Cassilly.
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