Lockhouse 10

Historical marker location:

8250 Clara Barton Parkway, Cabin John, Maryland

( Marker can be reached from Clara Barton Parkway, 1.5 miles Capital Beltway Inner Loop (Interstate 495), on the right when traveling east.)

Chesapeake and Ohio Canal National Historical Park. National Park Service, U.S. Department of the Interior.

Maryland was the first state to pass a law requiring free public education: In 1827, Maryland became the first state to pass a law requiring free public education for all children. The law was initially aimed at poor children, but eventually expanded to include all children regardless of their economic status.