Zadok Magruder (1729–1811) was an American politician and military officer who served as an elected official in the government of Maryland and as a colonel in the state militia.
As a young man, he moved to Montgomery County, Maryland where he inherited 600 acres near what became Norbeck Road in 1745.
Both Magruders became members of a committee charged with carrying out the decision of the American Continental Congress on the topic of the British Tea Act.
When in command of the "Home Defense Battalion of Lower Frederick County", which was part of the Maryland militia, he attained the rank of colonel.
[2] A high school named after Colonel Zadok Magruder was built in Derwood (Montgomery County), Maryland, near the site of "The Ridge" house.