Henry Wadsworth Longfellow Memorial

The name "M Street" refers to two major roads in the United States capital of Washington, D.C. Because of the Cartesian coordinate system used to name streets in Washington, the name "M Street" can be used to refer to any east-west street located twelve blocks north or south of the dome of the United States Capitol (not thirteen blocks, as there is no J Street). Thus, in all four quadrants of the city there are streets called "M Street", which are disambiguated by quadrant designations, namely, M Street NW, NE, SW, and SE.

The Demonet Building is composed of a historic townhouse and adjoining office building on the southeast corner of Connecticut Avenue and M Street NW in Washington, D.C. Constructed in 1880, the townhouse is the last Victorian residence on Connecticut Avenue between Dupont Circle and Farragut Square that has not been significantly altered. It features an octagonal tower topped by a dome with cartouche windows. Following a multi-year legal battle to demolish the townhouse, which had been added to the District of Columbia Inventory of Historic Sites in 1979, the Demonet Building and adjoining lot were sold for what was then a record price for downtown real estate. The adjoining office building, designed by Skidmore, Owings & Merrill, was completed in 1984. The building's namesake, John Charles Demonet, established a confectionery business on Pennsylvania Avenue in 1848. During the next several decades, he and his family grew the business into a successful company that included catering services. It was a confectionery supplier for the White House. In the early 1900s, the business was moved to Connecticut Avenue, a fashionable residential area at the time. It became a commercial pioneer of what was nicknamed the Fifth Avenue of Washington, D.C. After the business was moved a few blocks north in 1927, the Demonet family continued to own the building. It was rented to various retailers. The family sold the building in 1979. Since the modern addition was constructed, several organizations have owned the property, the most recent being an affiliate of the Qatari royal family.

H2 USA is a hybrid organization governed by a partnership affiliated with the United States private sector economy and the public sector services. The alliance is supportive of a hydrogen economy and hydrogen technologies with a representation by more than thirty cooperatives considering associations, automakers, energy companies, fuel cell suppliers, materials and component manufacturers, national laboratories, non-governmental organizations, and the United States Department of Energy.

Qorvis is an international Washington, D.C.-based public relations, advertising, media relations and crisis communications firm. It was acquired by the Publicis Groupe in January 2014, and became Qorvis/MSLGroup.On December 31, 2022, Qorvis was sold by Publicis to a group led by long-time Qorvis executive Matt J. Lauer.Qorvis provides public relations (PR) representation on behalf of a range of public companies, financial services firms, sovereign nations, and wealthy individuals. During the late-2000s financial crisis, Qorvis represented Wells Fargo and AIG.

National Association of Clean Water Agencies (NACWA) represents the interests of publicly owned wastewater treatment facilities, collection systems, and stormwater management agencies before the United States Congress, several Federal agencies, and in the courts. National Association of Clean Water Agencies advocates for federal funding for clean water agencies and for responsible national policies that advance clean water and a healthy environment.

The São Toméan] ambassador in Washington, D.C. is the official representative of the Government in São Tomé to the Government of the United States.

The Propane Education and Research Council is a nonprofit that provides leading propane safety and training programs and invests in research and development of new propane-powered technologies. PERC is operated and funded by the propane industry. PERC programs benefit a variety of markets including transportation, agriculture, commercial landscaping, residential, and commercial building. PERC was authorized by the U.S. Congress with the passage of the Propane Education and Research Act (PERA), signed into law on Oct. 11, 1996. PERC is governed by a 21-member board appointed by the National Propane Gas Association and the Gas Processors Association. Each association appoints nine Council members and they cooperate in the appointment of three public members. PERC's operations and activities are funded by an assessment levied on each gallon of propane gas at the point it is odorized or imported into the United States.

The Golden Triangle is a neighborhood and business improvement district (BID) in Washington, D.C. Covering 43 blocks, it encompasses the western part of Washington's central business district, running from the front yard of the White House's north side to Dupont Circle and from 16th Street NW to 21st Street NW and including sections of K Street and Connecticut Avenue. The commercial neighborhood is home to more than 3,000 organizations, 200 restaurants, 300 shops and retailers, 7 hotels, and 6 national parks.The Golden Triangle BID was created in 1997 by the District of Columbia City Council and approved by Mayor Marion Barry.The Golden Triangle BID is supported by a special assessment collected by the District of Columbia from owners of property within the BID's boundaries. Businesses that are located within the Golden Triangle BID's boundaries are automatically members of the BID. The BID is governed by a board of directors composed of up to twenty-three such members.

The Jefferson Place Gallery was an art gallery in Washington, D.C., founded in 1957 and closed in 1974. It had been located at 1216 Connecticut Street, NW in Washington, D.C.. The gallery was associated with the Washington Color School artists.

The Electronic Registration Information Center (ERIC) is a nonprofit organization in the United States whose goal is to improve electoral integrity by helping states improve the accuracy of voter rolls, increase access to voter registration, reduce election costs, and increase efficiencies in elections. ERIC is operated and financed by state election agencies and chief election officials.

Doctor John Witherspoon is a bronze sculpture and granite pedestal which depicts John Witherspoon, a Presbyterian minister, member of Congress, and signer of the Declaration of Independence. Born in Scotland, Witherspoon immigrated to the U.S. in the 1760s and later became president of the College of New Jersey (now known as Princeton University). He strongly supported the Thirteen Colonies in their fight to obtain freedom from the United Kingdom of Great Britain and Ireland. Witherspoon served in the Second Continental Congress and, after the American Revolutionary War ended, in the U.S. Congress. He was the only reverend who served in Congress at that time. In 1792, Witherspoon lost his eye sight after an infection and died two years later. It wasn't until over 100 years later that plans were made to erect a statue of Witherspoon in Washington, D.C. Members of the Church of the Covenant (now known as National Presbyterian Church) and other Presbyterians formed the Witherspoon Memorial Association in 1907. After raising enough funds for the memorial, they lobbied members of Congress for permission to erect the memorial on public land. The joint resolution passed in 1908. By that time, sculptor William CouperJ had begun working on the statue. The following year the memorial was dedicated. Prominent attendees at the event included future president Woodrow Wilson, Vice President James S. Sherman, former Secretary of State John W. Foster, and British Ambassador James Bryce, 1st Viscount Bryce. The memorial is located at the intersection of 18th Street NW, Connecticut Avenue, and N Street NW, in the Dupont Circle neighborhood. The statue is bronze and depicts Witherspoon holding a Bible. On one of the memorial's pedestal is a quote from Witherspoon. When the Church of the Covenant was razed in 1966, church members wanted the statue moved to its new location, but the government denied their request. The memorial is one of 14 American Revolution Statuary collectively listed on the National Register of Historic Places and the District of Columbia Inventory of Historic Sites. The memorial is also a contributing property to the Dupont Circle Historic District and the L'Enfant Plan.

Nuns of the Battlefield is a public artwork made in 1924 by Irish artist Jerome Connor, located at the intersection of Rhode Island Avenue NW, M Street, and Connecticut Avenue NW, in Washington, D.C., United States. A tribute to the more than 600 nuns who nursed soldiers of both armies during the American Civil War, it is one of two monuments in the District that mark women's roles in the conflict. It is a contributing monument to the Civil War Monuments in Washington, D.C., listed on the National Register of Historic Places. In 1993, it was surveyed for the Smithsonian Institution's Save Outdoor Sculpture! program.