In 1923, Der Hagopian immigrated from Turkey to United States, eventually settled in
Boston, who found him a job at the Hood Rubber Factory. He also attended courses at the Massachusetts School of Art studying painting and drawing, in addition to the Copley Society Art School. In 1930, Der Hagopian moved to
New York City The New York Times reviewed the church sculptures, commenting that Der Hagopian preserved Armenian heritage in the work, as each sculpture represented a scale model of the principle churches and monasteries of old Armenia - including some dating to the third century AD. His largest models would take up to three weeks to complete, using photographs and blueprints of the churches for the inspiration. Years later, a large portion of his unknown work was rediscovered by his granddaughter during a home renovation at the end of the twentieth century. Der Hagopian is also well known for his carvings, specifically Armenian
khatchkars. His magnum opus, completed in 1985, is a large intricately carved wooden khatchkar featuring images of his hometown in
Van and his late family. ==Music career==