for the memorial was selected. As of late 2008, construction of the memorial was underway. As Contrabands and Freedmen Cemetery, the cemetery was listed on the U.S. National Register of Historic Places in August, 2012. 20th century At the turn of the 20th century, the most common production in the city was glass, fertilizer, beer and leather. The glass often went into beer bottles. Much of the Virginia Glass Company effort went to supply the demands of the Robert Portner Brewing Company, until fire destroyed the St. Asaph Street plant on February 18, 1905. The Old Dominion Glass Company also had a glass works fall to fire, then built a new one. The Belle Pre Bottle Company held a monopoly on a milk bottle that they patented, yet that organization only lasted 10 years. Most businesses were smaller where the business occupied the first floor of a building and the owner and family lived above. Prohibition closed Portner Brewing in 1916. Work towards women's suffrage was contributed to by a Women's Citizens League in the city. President Woodrow Wilson visited the Virginia Shipbuilding Corporation on May 30, 1918 to drive the first rivet into the keel of the . In 1930 Alexandria annexed the town adjacent to Potomac Yard incorporated in 1908 named Potomac. In 1938 the Mt. Vernon Drive-In cinema opened. In 1939 the segregated public library experienced a sit-in organized by Samuel Wilbert Tucker. In 1940, both the Robert Robinson Library, which is now the Alexandria Black History Museum, and the Vernon Theatre opened Jim Morrison of The Doors as well as Cass Elliot and John Phillips of The Mamas & The Papas attended the George Washington High School in the 1950s. In 1955, then-congressman and future president Gerald R. Ford and his family moved to Alexandria from Georgetown. The Fords remained in their Alexandria home during Ford's tenure as vice president of the United States (1973–1974), as the vice president did not yet have an official residence. Following the resignation of Richard Nixon, Ford spent his first 10 days as President in the house before moving to the White House. In March 1959, Lieutenant Colonel William Henry Whalen, the "highest-ranking American ever recruited as a mole by the Russian Intelligence Service," provided Colonel Sergei A. Edemski three classified Army manuals in exchange for $3,500 at a shopping center parking lot within the city. Agents of the Federal