Illinois Congressman Sidney Richard Yates who helped establish the Holocaust Memorial Museum and served on its council. In 2017, a working clock was added to the tower. It had been a part of the original design, but was not installed due to excessive costs. References External links Historic photo of building from GSA Twitter Detail Photo of the Clock in the Tower Details of conservation work by McKay Lodge Conservation Laboratory Details of exterior restoration by Atlantic Refinishing & Restoration Summary video of exterior restoration United States Department of Agriculture facilities Government buildings completed in 1880 Government buildings on the National Register of Historic Places in Washington, D.C. Romanesque Revival architecture in Washington, D.C.