Gilbert David Blauvelt Hasbrouck (February 19, 1860 – June 5, 1942) was an American lawyer, politician, and judge from New York.
[2] He joined the law office of County Judge Alphonso T. Clearwater shortly after he was admitted to the bar, staying with him until October 1883.
[3] In 1883, Hasbrouck was elected to the New York State Assembly as a Republican, representing the Ulster County 2nd District.
In 1904, he was appointed to the New York Supreme Court, Third Judicial Department to fill a vacancy when Justice Herrick resigned to run for governor.
He served on the New York Supreme Court, Appellate Division, Third Department, from 1922 to 1923, when he returned to the trial bench.
[10] As a lawyer, he defended Governors Morton and Odell in related to their state constitutional authority to perform executive actions.
In 1930, he reorganized the Ulster County Historical Society, previously inactive for 68 years, and served as its president until his death.
He also helped restore his native village of Port Ewen's public library building in 1940, dedicated to the memory of his three deceased brothers.