Claim: On the List of United States federal courthouses (under the jurisdiction of the United States Court of Appeals) in the First Circuit in New Hampshire, U.S Custom House & Post Office in Portsmouth was the first one to be used.
Evidence: U.S. Custom House & Post Office 1860–1926
Now privately owned. U.S. Post Office & Court House U.S. Post Office & Court House† Warren B. Rudman U.S. Courthouse D.N.H. Portsmouth The United States District Court for the District of New Hampshire (in case citations, D.N.H.) Appeals from the District of New Hampshire are taken to the United States Court of Appeals for the First Circuit (except for patent claims and claims against the U.S. government under the Tucker Act, which are appealed to the Federal Circuit). 1935–1982
Still in use as a post office. 1968–present 1889–1967
Now the state's Legislative Office Building.