Thomas U. Walton 1804-1887 American architect of the U.S. Capitol and designer of its dome and wings added to the central building. A.L S. 1p. 4to., Washington, May 16, 1861 to future Union general Montgomery C. Meigs as Top. Engineer in Charge of Us. capitol extension and etc. . Walter advises Meigs that he is returning to Pennsylvania in consequence of the suspension [of public works] as announced yesterday, by order of the Secretary of War... I will take great pleasure in returning to my post the moment I am informed. Construction of the Capitol was suspended during the Civil War to divert money and material to the conflict. Fine historic content, fine condition.