Editing Glen Cove, New York (section)

===20th Century===
On January 1, 1918, Glen Cove became an independent city, separating from the Town of Oyster Bay, after 250 years. The [[Incorporated town|incorporation]] was driven by a desire for its tax revenues to be used locally, rather than distributed throughout Oyster Bay. Glen Cove, at the time, was an especially wealthy part of the town, but the town's provisions for Glen Cove's police service and roads were seen as "inadequate", given the amount of taxes levied.<ref>{{Cite news|date=1917-10-04|title=Glen Cove ready to bow as city|pages=3|work=Brooklyn Daily Times|url=https://www.newspapers.com/clip/78464704|access-date=2021-05-28|archive-date=September 30, 2023|archive-url=https://web.archive.org/web/20230930090007/https://www.newspapers.com/article/78464704/|url-status=live}}</ref>  It was unusual in that Glen Cove was incorporated as a city without ever having been an incorporated [[village]].<ref>{{Cite news|date=1917-01-19|title=Plan to make Glen Cove city|pages=9|work=Brooklyn Daily Times|url=https://www.newspapers.com/clip/47500900|access-date=2021-05-28|archive-date=September 30, 2023|archive-url=https://web.archive.org/web/20230930085855/https://www.newspapers.com/article/47500900/|url-status=live}}</ref>

By the mid-20th Century, most of the [[mansion]]s had been converted from single-family use. [[Woolworth Estate|Winfield Hall]], the former estate of F.W. Woolworth, remains privately owned.

Altogether, five Pratt families owned a total of about {{convert|5000|acre|km2}} in the area. John Teele Pratt's estate ([[The Manor (Glen Cove, New York)|The Manor]], designed by [[Charles A. Platt]]) is operated as the Glen Cove Mansion Hotel and Conference Center.

The Braes, the country estate of [[Herbert L. Pratt]], was purchased by the [[Webb Institute]] in 1945, and by 1947 housed a  college for naval architecture and engineering.<ref>MacKay, Robert B. et al. (1997). ''Long Island Country Houses and Their Architects, 1860–1940'', Society for the Preservation of Long Island Antiquities. p 84</ref>

George DuPont Pratt's estate, [[Killenworth]], was purchased by the [[Soviet Union]] in 1951, for both guests and staff of its [[United Nations]] (UN) delegation. In 1960, while attending UN meetings, Soviet Premier [[Nikita Khrushchev]] and [[Cuba]]n President [[Fidel Castro]] stayed at Killenworth.

Glen Cove's population grew rapidly after [[World War II]]. Residential developments replaced pastures and farms. Many new residents were second- or third-generation children of Eastern and [[Southern Europe]]an immigrants from [[Queens]] or [[Brooklyn]]. Many local [[African Americans]] were descended from [[Slavery in the United States|slaves]] of the [[Province of New York|colonial period]], when colonists had imported enslaved West Africans for domestic and farm labor. Still others came to [[New York City]] and surrounding areas during the [[Great Migration (African American)|Great Migration]], in the first half of the 20th Century.

Since the late 20th Century, newer Glen Cove residents have been mostly [[Latin Americans|Latin American]], [[East Asia|East Asian]] or  [[South Asia]]n.  Glen Cove has a [[Sikhs|Sikh]] [[gurdwara]].