Historical Marker
Montgomery County Jail
Historical marker location:
100 Maryland Ave, Rockville, Maryland
( Marker is at the intersection of Maryland Avenue and Vinson Street, on the right when traveling north on Maryland Avenue.)
Location: Maryland Avenue at Fleet Street. Explore Early Rockville Walking Tour.
Maryland was home to the first African American woman to hold a patent: In 1885, Sarah E. Goode, an African American woman from Baltimore, became the first African American woman to hold a U.S. patent. Her invention was a folding cabinet bed, which was designed to save space in small apartments.