Treasury Building (South Wing) Washington, DC Alteration, 1861–1865 Robert Mills, Architect, 1861 Isaiah Rogers, Architect (Alteration), 1861 Alexander Hamilton Bowman, Ammi Burnham Young, Architects E. Robinson & Co., Manufacturer
1865 Ammi B. Young, in his journal, writes that E. Robinson & Co. “are esteemed the best locksmiths in this country.”