The park occupies the central portion of what had been Juniper Swamp, a low-lying area formed by runoff from the melting of glaciers that created Long Island some 10,000 to 20,000 years ago.
The post-glacial climate helped form peat bogs, the acidic nature of which was subsequently favored by flora unique to New York City as well as wild blueberry plants harvested by early settlers.
[2] During the American Revolutionary War in the 18th century, occupying British troops cut down most of the trees in the vicinity, and some of the swamp's peat was mined to burn for heat.
[3] In the 1920s, the area of the swamp east of the railroad and west of what became the tennis courts was called Metropolitan Heights Fairground and was used as a race track for horses, dogs, automobiles and motorcycles.
Rothstein is widely suspected of significant involvement in the throwing of the 1919 World Series, known as the Black Sox Scandal, and soon thereafter using his gains to purchase 88 acres (36 ha) of Juniper Swamp.
[5] In mid-1927, Herbert Hoover, the United States Secretary of Commerce, approved the creation of a "Fact-Finding Committee on Suitable Airport Facilities for the New York Metropolitan District".
[9] The city's aeronautical engineer Clarence D. Chamberlin chose the Barren Island location because it was already dredged for marine traffic; it was close to Jamaica Bay, which would allow seaplanes to also use the airport; and it was city-owned, while the land in Middle Village was not.
[6]: 9 [10][9] One of the members of Hoover's Fact-Finding Committee objected because Middle Village was located at a higher elevation with less fog, while Barren Island was more frequently foggy during the spring and fall.
[11][10] In 1930, the Regional Plan Association proposed building an airport and civic center in Juniper Valley, on a 210-acre (85 ha) area bordering Maspeth and Middle Village.
[14][15] In March 1931, New York City Comptroller Adam Sandler, suggested a competing proposal that would instead use Rothstein's land in Juniper Valley as a public park.
[17] New York City acquired Juniper Swamp at the rate of $5,700 per acre as settlement with the Rothstein estate for back taxes, and immediately tagged it for development as a public park.
[19] News of the park, coupled with improvements of Works Progress Administration (WPA) efforts, ushered in a wave of housing growth in the vicinity that continued through the 1960s.
[26][27][28] Carey and Rice, both cabinet members under Mayor Fiorello H. La Guardia, surrendered to the Long Island City Courthouse and were released without bail.