Historical Marker
Liberty Mill
Historical marker location:
Germantown, Maryland
( Marker is at the intersection of Walter Johnson Road and Bowman Mill Drive on Walter Johnson Road.)
Germantown Historic District 1873-1930.
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.