James Hooker Hamersley (January 26, 1844 – September 15, 1901)[1] was an American heir, lawyer and poet from New York City during the Gilded Age.

He was the son of Col. John William Hamersley (1808–1889) and his wife, born Catherine Livingston Hooker (1817–1867).

[2] His siblings included Helen Reade Hamersley, who married Charles Dickinson Stickney, a New York City lawyer and banker; Virginia Hamersley, who married Cortlandt de Peyster Field (son of Benjamin Hazard Field);[3] and Catherine Livingston Hamersley, who married John Henry Livingston.

[5] He was nominated for the New York State Assembly, but withdrew in favor of William Waldorf Astor.

[11] They had three children: Hamersley died at his country estate, "Brookhurst," on September 15, 1901, at Garrison-on-Hudson, New York.