The Johnson house is a historic located on land that was patented to Charles Carroll the Settler in 1702.

The property was part of the 7000 acre Carroll family slave plantation Doughoreagan Manor, most notable as home of Charles Carroll of Carrollton, signer of the declaration of Independence.

The William E. Johnson home was a two-story L-shaped house of wood construction built prior to 1880.

[1] In 1988, owners Thomas and Mary Scrivener place the farm into Howard County's agricultural preservation program.

The estate was renamed to Manor Hill Farms, and in 2014 the Howard County Economic Development Agency awarded a $200,000 grant to open Manor Hill Brewery onsite.