Harold I. Pratt

He was born in Brooklyn, New York, the son of oil industrialist Charles Pratt and Mary Helen Richardson.

[1] Welwyn, the family mansion designed by Delano & Aldrich, was built in 1913 at Glen Cove, Long Island.

[4] In World War II, a Liberty ship, number 3044, the Harold I. Pratt, was named in the senior man's honor.

[5] In 1944, his widow, Harriet Barnes Pratt, donated the family's four-story mansion on the corner of 68th Street and Park Avenue, on the Upper East Side of Manhattan, to the Council on Foreign Relations for use as its new headquarters.

Pratt married Harriet Barnes (1879–1969), a wealthy New York philanthropist, collector of Americana, and horticulturist.

Harold Pratt House, 68th Street and Park Avenue, NY, donated by his widow as the headquarters of the Council on Foreign Relations
Welwyn Preserve , the gardens designed by James Leal Greenleaf in the 1890s
Harold I. Pratt Jr.