Adolf ClussAdolf Ludwig Cluss (July 14, 1825 – July 24, 1905) also known as Adolph Cluss was a German-born American immigrant who became one of the most important, influential and prolific architects in Washington, D.C., in the late 19th century, responsible for the design of numerous schools and other notable public buildings in the capital. Today, several of his buildings are still standing. He was also a City Engineer and a Building Inspector for the Board of Public Works. He is believed to have been the only person to have met both Karl Marx and President Ulysses S. Grant.
Red brick was Cluss' favorite building material; that, and his early communist sympathies, led some to dub him the "Red Architect", though he was a man who in later life became a confirmed Republican. Provided by Wikipedia