Adolf Ludwig Cluss 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.

Calvary Baptist Church is a Baptist church located in the Chinatown neighborhood in Washington, D.C. affiliated with the American Baptist Churches USA, the Cooperative Baptist Fellowship, the Baptist Peace Fellowship of North America, the Alliance of Baptists, the District of Columbia Baptist Convention, and the Association of Welcoming and Affirming Baptists.