This small park is named after Private Patrick J. Devanney, a native of the Bronx, who gave his life in World War I. Devanney grew up at 376 143rd Street, and he enlisted in the United States Army at the start of the war. He served as a private in Company E of the 308th Infantry and was wounded in battle. He died on October 3, 1918, just seven weeks before the war ended.
Devanney Triangle is in the historic central Bronx neighborhood of Tremont, which includes the smaller neighborhoods of Claremont, Mount Eden, and Mount Hope. The area was farmland in 1841, when the New York and Harlem Railroad opened a station that soon became the center of a village. In the 1850s, the postmaster, Hiram Tarbox, named the town Tremont, after the three major hills in the area—Fairmount, Mount Eden, and Mount Hope.
On February 1, 1888, the City of New York acquired the land that is now Devanney Triangle as a street by condemnation. The Department of Highways conveyed the property to Parks on May 22, 1940, and it was named later that day “to pay tribute to the memory of one who made the supreme sacrifice in the World War.” Bounded by Burnside Avenue and Grand Concourse, Devanney Triangle opened as a small sitting park with a series of walkways, 12 benches, and 15 decorative trees and greenery, encompassed by a pipe rail fence. The London planetrees, grass, game tables, and benches make Devanney Triangle a soothing oasis in the midst of several major thoroughfares.