U.S. Post Office, Prospect Park West Station, 1961. Formerly Ninth Avenue, this street became Prospect Park West in 1895 when residents, sick of having their mail mis-delivered, petitioned the Board of Aldermen for a name change. The Brooklyn Daily Eagle described Brooklyn’s confusing lack of a street naming convention: “Let us look at the case of Ninth avenue alone. There are in Brooklyn, beside an avenue bearing this number, a Ninth street, a North Ninth street, and a South Ninth street. In New York there are Ninth avenue, and East Ninth street and West ninth street. There are seven streets with the same number and distinguished from each other only by use of the word avenue instead of street or by prefixing one of the points of the compass. It is surprising there are not a Northwest Ninth street and a Southeast Tenth avenue.”

“The corner of Prospect Park West and 9th Street at the entrance to Prospect Park. Two women with a baby carriage are visible to the right and a mailbox and an apartment builidng \[sic] are visible to the left. Ca. 1915." The building at left is no. 138 Prospect Park West. Streetcar tracks turning left at 9th street are part of the Smith Street Line, between the Brooklyn Bridge and the Ninth Avenue Depot at Prospect Park Southwest.

Park Slope Armory ARCHITECT: William A. Mundell DATE: 1887-88 STYLE: Castellated Built in 1891-95, the Fourteenth Regiment Armory is designed in the castellated style by William A. Mundell. The armory consists of a three-story administration building with asymmetrical three- and four-story towers and corner bastions facing Eighth Avenue, and a one-and-one-half-story, barrel-vaulted drill shed with shallow buttresses and projecting entrance pavilions on the side streets. Organized in the late 1840s, the Fourteenth Regiment, known as the Brooklyn Chasseurs and later nicknamed the “Red-legged Devils” for the red Zouave uniforms worn by its members, served with distinction and suffered heavy casualties during the Civil War.

Ansonia Clock Company, undated. Anson Green Phelps founded the Ansonia Brass Company in 1844, and six years later the Ansonia Clock Company was founded in Connecticut as a subsidiary of the parent company. For the next eight decades, Ansonia was one of the major clock manufacturers in the United States. This clock factory, which occupied much of the block between Seventh and Eighth Avenues and 12th and 13th Streets, opened in 1879. The factory is lost to a terrible fire in 1880 and rebuilt in the same location the following year. The company condensed its production into Brooklyn in the mid-1880s. 1914 was a banner year for the firm which was then producing 440 different clock models. The war years were hard on the business and they never fully recovered, particularly with new competition in the novelty clock market. The Ansonia Clock Company sold this building in 1926 and sold the business to Soviet Russian interests in 1929. Today the building is a co-op called Ansonia Court.

Lafayette Memorial, unknown date. Marshal Joseph Joeffre of the French War Commission unveils the memorial to the Marquis de Lafayette; May 10, 1917. Daniel Chester French's bronze sculpture, a gift of Henry Harteau, depicts Lafayette, his groom James Armistead Lafayette, and his horse. The memorial's carved dedication omits James Armistead Lafayette, an African American born into slavery in Virginia who later served the Continental Army as a spy during the Revolutionary War. After the war, Lafayette, a staunch abolitionist, interceded to secure Armistead's freedom. In a gesture of appreciation, Armistead adopted the surname Lafayette as a free man.

View of Bartel-Pritchard Square, 1951. Dedicated in 1923, the Bartel-Pritchard Square was named for two local boys who perished in the First World War. Emil Bartel and William Pritchard were good friends who enlisted in Brooklyn’s 13th Regiment of the National Guard and served in the 59th Regiment, Coast Artillery. In 1965 a local VFW post erected an additional memorial. The polished black granite monument honors in memory of the men of the community who gave their lives in wartime defense of their country.

Acme Hall was a prominent social club built in 1890. It was designed in the Romanesque style by architect C. Nickenig. The original building was adorned with a crenelated roofline and a tower that jutted out of its southeast corner. The tower bore its name, "The Acme," in an Amherst stone carving. The hall lost its elite status however: in the 1930s it was raided for showing stag films - quite a departure from its well-to-do upbringings. By then, the eatery downstairs was "Diamonds," a bar and grill infamous for a shooting in 1938. A patron, Robert Joyce, was upset over a comment about the Brooklyn Dodger's defeat by the Giants in the National League. Joyce, who had reportedly consumed 18 glasses of beer that evening, shot two people - one of them was the son of the bar's owner. In 1945 , The Acme was turned over to become a mixture of stores and lofts after being purchased by Ernest S. Felzman. An illegal garment factory and loft residencies also found their way into the building around this time. The Acme was turned over once again to Howard Pronsky in 1986. Sometime before the new ownership, the tower was removed and the whimsical crenelation was replaced by a more modest roofline. The space was converted to offices after a $750,000 renovation, making it one of the first non-brownstone buildings with office space in the neighborhood. Today, it operates as a music studio.

Holy Name of Jesus Roman Catholic Church, 1961. By 1961, the vine-covered Holy Name was part of a changed neighborhood: the six-lane Prospect Expressway, completed in 1954, displaced residents of demolished apartment buildings on 18th and 19th Streets, including Italian-American parishioners of Holy Name.