George Hadfield was one of the most distinguished architects ever to practice in this country, yet he is so little known that no book has been written about him and very little has been published in architectural journals. Born in Florence in 1763, the son of an English innkeeper, he arrived in America in 1795 and made Washington his home for the remaining thirty-one years of his life. Among other buildings he designed is Arlington House, now a museum overlooking Arlington National Cemetery. He also contributed substantially to one of the finest complexes of buildings ever erected in the capital: the first offices of the Departments of State, Treasury, Navy, and War, four separate edifices connected with the White House so that they seemed wings of the presidential mansion. Like so many of Hadfield’s Washington buildings, they have disappeared. But his most important achievement still remains: the old City Hall, which inspired its much larger neighbor, the original National Gallery of Art, dedicated in 1941.