On February 5, 1838, Detroit’s militia company, the Brady guards, was called into service during the Patriot War in Canada to prevent Americans from attempting to overthrow the Canadian government and to preserve the peace between the two countries.
In 1832, at the end of the Black Hawk War, the Detroit City Guards were disbanded. A number of young men, including some former members of the Detroit City Guard, formed a new independent volunteer company in Detroit on April 2, 1836. They sought and received permission from Brigadier General Hugh Brady to name themselves after him.
In 1855, the Brady Guards became the Detroit Light Guard. This unit has had a continuous existence to the present-day and is now Company A, 1st Battalion, 125th Infantry.
Sources:
Michigan History magazine
Brady Guards entry posted by Michigan Department of Military and Veteran Affairs.