Archie Alexander was an African American engineer from Iowa and the senior partner in the firm Alexander and Repass. In the 1940s, the firm was hired to build a bridge and seawall at the Tidal Basin. Alexander spearheaded the project and brought in…

L'Enfant was an architect and civil engineer chosen by President George Washington in 1791 to survey and design the new federal city of Washington. L'Enfant designed streets in a grid pattern, and he placed major government buildings and parks in the…

Benjamin H. Latrobe was an architect hired by President Thomas Jefferson to serve as the Surveyor of Public Buildings in 1803. He spent nearly 14 years in Washington supervising the construction and design of public buildings. His largest project was…