Dumbarton Historic District is a national historic district in Pikesville, Baltimore County, Maryland, United States. The suburban subdivision features curvilinear streets, generously sized lots, and naturalistic landscaping that generally reflect design principles associated with Frederick Law Olmsted. These features characterized the Roland Park Company's seminal developments. Many of subdivision's original residents were prominent Jewish merchants and industrialists, most of whom were of German descent. It was added to the National Register of Historic Places in 2009. See also History of the Jews in Baltimore History of the Germans in Baltimore References External links Historic districts on the National Register of Historic Places in Maryland Historic districts in Baltimore County, Maryland Historic Jewish communities in the United States German-Jewish culture in Maryland German communities in the United States Jews and Judaism in Pikesville, Maryland National Register of Historic Places in Baltimore County, Maryland Pikesville, Maryland Upper class culture in Maryland