11 Market St., Cambridge, Massachusetts. County/parish: Middlesex.
Added to the National Register of Historic Places April 13, 1982. NRIS 82001959.
Part of Cambridge MRA (NRIS 64000275).
1 contributing building.
The Josiah Mason Jr. House is a historic house in Cambridge, Massachusetts.
(read more...)National Park Service documentation: https://catalog.archives.gov/id/63790468