Under the Commissioners' Plan of 1811 that established the Manhattan street grid, the avenues would begin with First Avenue on the east side and run through Twelfth Avenue in the west. East of First Avenue the plan provided four additional lettered avenues running from Avenue A eastward to Avenue D wherever they could be fitted.[2]
While First Avenue was the easternmost avenue in most of Manhattan, several discontinuous sections were designated as Avenue A north of present-day Alphabet City.
Beekman Place, located at the headquarters of the United Nations, runs as a short street between Mitchell Place/49th Street and 51st Street. Though not part of the original Avenue A in the 1811 plan, it is named after the Beekman family (members of whom include Wilhelmus Beekman, whose namesakes also include downtown's Beekman Street and William Street), who were influential in New York City's development.[12]
Sutton Place was also formerly designated as Avenue A; in its original length it ran between East 53rd and 92nd Streets. Effingham B. Sutton constructed a group of brownstones in 1875 between 57th and 58th Streets, and is said to have lent the street his name, though the earliest source found by The New York Times dates back to 1883. The New York City Board of Aldermen approved a petition to change the name from "Avenue A" to "Sutton Place", covering the blocks between 57th and 60th Streets.[13][14]
In 1928, a one-block section of Sutton Place north of East 59th Street, and all of Avenue A north of that point, was renamed York Avenue in honor of World War One US Army Sergeant Alvin York, who won the Medal of Honor for an attack in the Meuse-Argonne Offensive on October 8, 1918.[14][15] This section is the only former section of Avenue A to still use the Avenue A address system (as it only has four-digit building numbers).
The northernmost section of Avenue A, stretching between East 114th and 120th Streets in East Harlem, was renamed Pleasant Avenue in 1879.[6][16] The addresses on Pleasant Avenue are not continuous with those on Avenue A (which would be in the 2000-series if they were continuous).
^Pollak, Michael (August 7, 2005). "F. Y. I."The New York Times. Retrieved October 16, 2007. In 1928, Sutton Place from 59th to 60th Street, and Avenue A north of 60th, were renamed York Avenue in honor of Sgt. Alvin C. York (1887-1964), a World War I hero from Tennessee and a recipient of the Medal of Honor.