Thomas Whitaker Trenchard (1863–1942) was a Justice of the New Jersey Supreme Court from 1906 to 1941.
Whitaker was born on December 13, 1863 in Centreton, Pittsgrove Township, Salem County, New Jersey, the son of William B. and Marie G. Trenchard. He graduated South Jersey Institute in 1882 and was admitted to bar in 1886. He practiced at Bridgeton, New Jersey, where he also acted as City Solicitor from 1892-1899. He was Member House of Assembly in 1889 and Republican presidential elector in 1896. He married Harriet M. Manning on November 17, 1891. They resided in Bridgeton.
Trenchard was appointed law judge of Cumberland County by Governor of New Jersey Foster McGowan Voorhees in 1899 and reappointed by Governor Murphy in 1904. He was appointed Justice of Supreme Court on June 8, 1906 to fill a vacancy and for full term on January 15, 1907. He is well known for being the presiding judge in the high-profile trial of Richard Hauptmann for the Lindbergh kidnapping. He retired in 1941.
He died on July 23, 1942 at his home in Trenton and is buried at the Old Broad Street Presbyterian Church and Cemetery in Bridgeton.